Can You Save Nasturtium Seeds? A Comprehensive Guide

Saving seeds is a rewarding way to connect with nature and ensure future blooms. Can You Save Nasturtium Seeds? Absolutely! This comprehensive guide from savewhere.net provides all the information you need to successfully collect, store, and grow your own nasturtiums, ensuring a vibrant garden while saving money. Learn expert tips on seed selection, drying, and storage to maximize germination rates and enjoy these colorful, edible flowers year after year.

1. Why Save Nasturtium Seeds?

Saving seeds from your garden is a fantastic way to connect with the growing cycle and save money. Saving nasturtium seeds is a simple and rewarding process, allowing you to propagate these vibrant, edible flowers year after year.

Here’s why you should consider it:

Cost Savings: Buying seeds every year can add up. Saving your own is a free way to propagate your favorite plants.
Preservation: Saving seeds allows you to preserve specific traits you love in your plants, such as unique colors or flavors.
Sustainability: It’s an eco-friendly practice that reduces your reliance on commercial seed production.
Educational: Seed saving is a great hands-on learning experience for both adults and children, teaching about plant life cycles.
Adaptation: Seeds saved from your own garden are often better adapted to your local climate, leading to healthier, more resilient plants.

2. Identifying When Nasturtium Seeds Are Ready for Harvest

Knowing when to harvest your nasturtium seeds is crucial for ensuring their viability. Nasturtium seeds are ready for harvest when they have fully matured and dried on the plant.

Here’s how to identify when the seeds are ready:

Color Change: The seed pods will change from green to a light tan or brown color.
Dryness: The seeds should feel hard and dry to the touch. If they are still soft or green, they need more time to mature.
Detachment: Mature seeds will often detach easily from the plant. You may find them dropping to the ground around the base of the plant.
Wrinkling: The outer shell of the seed might appear slightly wrinkled, indicating that it has dried out sufficiently.
Timing: Depending on your climate, nasturtium seeds are typically ready for harvest in late summer or early fall.

2.1. Visual Cues for Seed Maturity

Visually inspecting the seed pods is a reliable way to determine their readiness for harvest. The color and texture of the pods provide important cues.

Here are some visual indicators to look for:

Feature	Immature Seeds	Mature Seeds
Color	Bright green	Light tan, brown, or beige
Texture	Smooth and plump	Hard, dry, and slightly wrinkled
Attachment	Firmly attached to the plant	Loosely attached, may fall off easily
Seed Pod	Green and fleshy	Dry and brittle
Overall Look	Fresh and vibrant	Faded and dried out

2.2. The Touch Test for Seed Readiness

Touching the seeds can also give you a good indication of their maturity. Mature seeds will feel hard and dry, while immature seeds will be soft and pliable.

Follow these steps for the touch test:

Select a Pod: Choose a seed pod that appears to be mature based on color.
Gently Squeeze: Gently squeeze the seed pod between your fingers.
Assess Hardness: If the seeds inside feel hard, they are likely ready for harvest.
Check Dryness: The seed pod itself should feel dry and brittle.
Repeat: Test several pods to ensure you are collecting only mature seeds.

3. Step-by-Step Guide to Collecting Nasturtium Seeds

Collecting nasturtium seeds is a straightforward process that requires only a few simple steps. Follow these steps to ensure you gather healthy and viable seeds:

Gather Your Supplies: You’ll need a container (such as a basket or bucket), gardening gloves, and possibly scissors or pruning shears.
Choose Mature Seeds: Select the seed pods that are brown, dry, and easily detachable from the plant.
Gently Pluck: Gently pluck the mature seed pods from the plant. If they don’t come off easily, they may need more time to dry.
Collect Seeds: Place the collected seed pods into your container.
Separate Seeds: Once you have collected a sufficient amount, separate the seeds from the pods. This can be done by hand or by gently crushing the pods.
Clean Seeds: Remove any debris or plant material from the seeds to prevent mold growth during storage.
Dry Seeds: Spread the seeds in a single layer on a tray or screen to dry in a cool, dry place for about a week.
Store Seeds: Once the seeds are completely dry, store them in an airtight container in a cool, dark, and dry location.

3.1. Best Time of Day to Collect Seeds

The time of day when you collect seeds can impact their quality. Collecting seeds in the morning after the dew has dried is ideal.

Here’s why:

Dryness: Morning collections ensure that the seeds are dry, reducing the risk of mold during storage.
Temperature: Morning temperatures are typically cooler, which helps prevent the seeds from overheating.
Avoid Midday Sun: Avoid collecting seeds during the hottest part of the day, as the sun can damage the seeds.
Evening Dew: Collecting seeds in the evening can expose them to dew, which can lead to moisture problems.

3.2. Tools You’ll Need for Seed Collection

Having the right tools can make the seed collection process easier and more efficient. Here are some essential tools:

Tool	Purpose
Gardening Gloves	Protect your hands from dirt and potential irritants.
Scissors/Shears	For cutting seed pods from the plant if they don’t detach easily.
Collection Basket	To hold the collected seed pods.
Drying Trays	To spread seeds out for drying.
Airtight Containers	For storing dried seeds (glass jars or plastic containers work well).
Labels	To label containers with the plant name and collection date.

4. Drying Nasturtium Seeds Properly

Proper drying is essential for preserving the viability of your nasturtium seeds. Drying the seeds thoroughly prevents mold and rot, ensuring they remain viable for planting in the future.

Here’s how to dry nasturtium seeds effectively:

Spread Seeds: After collecting and cleaning your nasturtium seeds, spread them in a single layer on a clean, dry tray or screen.
Choose a Location: Select a cool, dry, and well-ventilated location for drying. Avoid direct sunlight, as it can damage the seeds.
Air Circulation: Ensure good air circulation around the seeds to facilitate drying. You can use a small fan to improve airflow if necessary.
Drying Time: Allow the seeds to dry for about one to two weeks, or until they are completely dry to the touch.
Check for Dryness: To check if the seeds are dry enough, try bending one. If it snaps, it’s dry. If it bends, it needs more time.
Monitor Regularly: Check the seeds daily for any signs of mold or mildew. Discard any affected seeds immediately.

4.1. Ideal Drying Environment

The environment in which you dry your seeds plays a crucial role in their preservation. A cool, dry, and well-ventilated space is ideal.

Here’s what to consider:

Temperature: Maintain a temperature between 60-70°F (15-21°C) to prevent overheating and damage.
Humidity: Keep humidity levels low, ideally below 50%, to prevent mold growth.
Ventilation: Ensure good air circulation to help the seeds dry evenly.
Avoid Sunlight: Direct sunlight can cause the seeds to dry too quickly and damage their internal structures.
Indoor Drying: Drying seeds indoors is often the best option, as it provides more control over the environment.

4.2. Troubleshooting Common Drying Issues

Even with the best intentions, you might encounter some issues during the drying process. Here are some common problems and how to address them:

Issue	Solution
Mold Growth	Discard affected seeds immediately. Improve air circulation and reduce humidity.
Slow Drying	Ensure seeds are spread in a single layer. Increase ventilation and consider using a dehumidifier.
Over-Drying	Avoid direct sunlight. Monitor seeds regularly and remove them from the drying area once they are dry.
Uneven Drying	Rotate the seeds occasionally to ensure even drying.
Insect Infestation	Inspect seeds regularly and remove any insects. Consider using a natural insect repellent.

5. Storing Nasturtium Seeds for Future Use

Proper storage is just as important as proper drying. Storing your nasturtium seeds correctly will ensure they remain viable until you’re ready to plant them.

Here’s how to store nasturtium seeds effectively:

Use Airtight Containers: Place the dried seeds in airtight containers, such as glass jars or plastic containers with tight-fitting lids.
Add Desiccant: Include a desiccant, such as silica gel packets or dried rice, to absorb any residual moisture.
Label Containers: Label each container with the plant name (nasturtium) and the date of collection.
Store in a Cool, Dark Place: Store the containers in a cool, dark, and dry location, such as a basement, refrigerator, or cupboard.
Maintain Consistent Temperature: Avoid locations with fluctuating temperatures, as this can reduce seed viability.
Check Periodically: Check the seeds periodically for any signs of moisture or mold. Discard any affected seeds immediately.

5.1. Best Containers for Seed Storage

Choosing the right containers can significantly impact the longevity of your stored seeds. Airtight containers are essential to protect the seeds from moisture and pests.

Here are some of the best options:

Container Type	Advantages	Disadvantages
Glass Jars	Airtight, reusable, and prevent moisture from seeping in. Clear glass allows for easy inspection of seeds.	Can be heavy and breakable.
Plastic Containers	Lightweight, durable, and airtight. Choose containers made from food-grade plastic to ensure they are safe for storing seeds.	Some plastics may not be as airtight as glass.
Mylar Bags	Provide excellent protection against moisture, light, and air. Ideal for long-term storage.	More expensive than other options.
Paper Envelopes	Breathable and suitable for short-term storage. Place envelopes inside an airtight container for added protection.	Not ideal for long-term storage due to potential moisture absorption.

5.2. Optimal Storage Conditions

Maintaining the right storage conditions is key to preserving seed viability. Cool, dark, and dry environments are ideal for long-term storage.

Here’s a breakdown of the optimal conditions:

Temperature: Keep the temperature between 32-41°F (0-5°C) for the best long-term storage. A refrigerator is a good option.
Humidity: Maintain low humidity levels, ideally below 50%, to prevent mold and rot.
Darkness: Store seeds in a dark location to prevent light exposure, which can degrade seed quality.
Consistency: Avoid fluctuations in temperature and humidity, as these can shorten the lifespan of your seeds.

6. Testing Seed Viability

Before planting your saved nasturtium seeds, it’s a good idea to test their viability. Testing ensures that you’re not wasting time and resources on seeds that won’t germinate.

Here’s how to test seed viability:

Gather Supplies: You’ll need a paper towel, a plastic bag, and your saved nasturtium seeds.
Moisten Paper Towel: Dampen the paper towel with water, but don’t soak it.
Arrange Seeds: Place 10-20 seeds on one half of the paper towel.
Fold Paper Towel: Fold the other half of the paper towel over the seeds.
Place in Plastic Bag: Put the folded paper towel into a plastic bag and seal it.
Label and Date: Label the bag with the plant name and the date.
Wait: Place the bag in a warm location and wait 7-14 days.
Check Germination: After the waiting period, check the seeds for germination. Count how many seeds have sprouted.
Calculate Germination Rate: Divide the number of sprouted seeds by the total number of seeds tested and multiply by 100 to get the germination rate.

6.1. Interpreting Germination Test Results

Understanding the germination rate will help you determine how many seeds to plant. A higher germination rate means more seeds are likely to sprout.

Here’s how to interpret the results:

80-100% Germination: Excellent viability. Plant seeds as usual.
60-79% Germination: Good viability. Plant seeds a little closer together to compensate for the lower germination rate.
40-59% Germination: Moderate viability. Plant seeds more densely to ensure sufficient growth.
Below 40% Germination: Poor viability. Consider using fresh seeds for better results.

6.2. Factors Affecting Seed Viability

Several factors can affect the viability of your saved seeds. Understanding these factors will help you improve your seed saving practices.

Here are some key factors:

Age of Seeds: Older seeds tend to have lower viability than newer seeds.
Storage Conditions: Improper storage conditions, such as high humidity or fluctuating temperatures, can reduce viability.
Drying Process: Inadequate drying can lead to mold growth and reduced viability.
Plant Health: Seeds from healthy plants are more likely to be viable than seeds from diseased or stressed plants.
Genetic Factors: Some varieties of plants naturally have lower seed viability than others.

7. Planting Your Saved Nasturtium Seeds

Once you’ve saved, dried, stored, and tested your nasturtium seeds, you’re ready to plant them. Planting your saved seeds is a rewarding experience that brings the seed-saving cycle full circle.

Here’s how to plant your saved nasturtium seeds:

Timing: Nasturtiums can be planted directly in the garden after the last frost or started indoors 4-6 weeks before the last frost.
Location: Choose a location with full sun to partial shade and well-drained soil.
Soil Preparation: Prepare the soil by loosening it and adding compost or other organic matter.
Sowing Seeds: Sow the seeds about 1/2 inch deep and 6-12 inches apart.
Watering: Water the seeds gently after planting. Keep the soil consistently moist until the seeds germinate.
Germination: Nasturtium seeds typically germinate in 7-14 days.
Thinning: Once the seedlings have emerged, thin them to the desired spacing.

7.1. Soil and Sunlight Requirements

Nasturtiums are relatively easy to grow, but providing the right soil and sunlight conditions will help them thrive.

Here’s what they need:

Soil: Nasturtiums prefer well-drained soil that is not too rich. Excessive fertilization can lead to more foliage and fewer flowers.
Sunlight: They thrive in full sun (6-8 hours of direct sunlight per day) but can also tolerate partial shade (4-6 hours of sunlight per day).
pH Level: Nasturtiums prefer a slightly acidic to neutral soil pH (6.0-7.0).

7.2. Watering and Maintenance Tips

Proper watering and maintenance will help your nasturtiums grow and produce beautiful flowers.

Here are some tips:

Watering: Water regularly, especially during dry periods. Avoid overwatering, as this can lead to root rot.
Fertilizing: Avoid excessive fertilization. If necessary, use a balanced, slow-release fertilizer sparingly.
Deadheading: Remove spent flowers to encourage continuous blooming.
Pest Control: Monitor plants for pests, such as aphids and caterpillars. Use organic pest control methods if necessary.
Support: Provide support for climbing varieties to keep them off the ground.

8. Common Issues When Saving Nasturtium Seeds (and How to Solve Them)

Even with careful planning, you might encounter some challenges when saving nasturtium seeds. Here are some common issues and how to address them:

Issue	Solution
Low Germination Rate	Ensure seeds are properly dried and stored. Test seed viability before planting.
Mold Growth	Improve air circulation during drying. Use a desiccant in storage containers.
Pest Infestation	Inspect seeds regularly for pests. Store seeds in airtight containers. Use natural pest repellents if necessary.
Seed Rotting	Avoid overwatering. Ensure soil is well-drained.
Poor Plant Growth	Provide adequate sunlight and well-drained soil. Avoid excessive fertilization.
Lack of Flowering	Ensure plants receive enough sunlight. Avoid over-fertilizing with nitrogen.

9. The Benefits of Growing Nasturtiums

Beyond seed saving, growing nasturtiums offers numerous benefits for your garden and your health.

Here are some of the advantages:

Edible Flowers and Leaves: Nasturtium flowers and leaves are edible and have a peppery flavor. They can be used in salads, sandwiches, and as a garnish.
Attracts Pollinators: Nasturtiums attract pollinators, such as bees and butterflies, to your garden.
Deters Pests: They can deter certain pests, such as aphids and cabbage moths.
Companion Planting: Nasturtiums make excellent companion plants for vegetables, such as tomatoes and cucumbers.
Soil Health: They can improve soil health by suppressing weeds and adding organic matter.
Aesthetic Value: Nasturtiums add vibrant color and beauty to any garden.

9.1. Culinary Uses of Nasturtiums

Nasturtiums are not only beautiful but also versatile in the kitchen. Both the flowers and leaves can be used to add a peppery kick to your culinary creations.

Here are some popular culinary uses:

Salads: Add fresh nasturtium flowers and leaves to salads for a peppery flavor and vibrant color.
Sandwiches: Use nasturtium leaves as a spicy alternative to lettuce in sandwiches and wraps.
Garnish: Garnish soups, appetizers, and main dishes with nasturtium flowers for a pop of color and flavor.
Pesto: Make nasturtium pesto by blending the leaves with garlic, olive oil, nuts, and cheese.
Vinegar Infusion: Infuse vinegar with nasturtium flowers and leaves for a unique and flavorful condiment.
Stuffed Flowers: Stuff the flowers with cream cheese or other fillings for an elegant appetizer.

9.2. Nasturtiums as Companion Plants

Nasturtiums are excellent companion plants, offering various benefits to neighboring plants.

Here’s how they can help:

Pest Deterrent: They can repel pests such as aphids, whiteflies, and squash bugs.
Trap Crop: They can act as a trap crop, attracting pests away from more vulnerable plants.
Attract Pollinators: They attract pollinators, which can improve the yield of nearby fruiting plants.
Ground Cover: They can act as a ground cover, suppressing weeds and conserving soil moisture.

Here are some plants that benefit from being planted near nasturtiums:

Tomatoes: Nasturtiums can deter tomato hornworms and other pests.
Cucumbers: They can repel cucumber beetles and other pests.
Cabbage: They can deter cabbage moths and other pests.
Beans: They can attract pollinators and improve bean yields.
Fruit Trees: They can attract beneficial insects that prey on fruit tree pests.

10. Frequently Asked Questions (FAQs) About Saving Nasturtium Seeds

10.1. Can I save seeds from all types of nasturtiums?

Yes, you can save seeds from all open-pollinated or heirloom nasturtium varieties. Hybrid varieties may not produce true-to-type seeds.

10.2. How long do nasturtium seeds remain viable?

Nasturtium seeds can remain viable for up to 3-5 years if stored properly in a cool, dark, and dry location.

10.3. What if my nasturtium seeds get moldy during drying?

Discard any moldy seeds immediately and improve air circulation during the drying process.

10.4. Can I plant nasturtium seeds directly in the ground?

Yes, nasturtium seeds can be planted directly in the ground after the last frost.

10.5. How often should I water nasturtiums?

Water nasturtiums regularly, especially during dry periods, but avoid overwatering.

10.6. Do nasturtiums need fertilizer?

Nasturtiums do not require heavy fertilization. In fact, too much fertilizer can lead to more foliage and fewer flowers.

10.7. How do I know if my nasturtium seeds are ready to harvest?

Nasturtium seeds are ready to harvest when the seed pods turn brown and dry and the seeds easily detach from the plant.

10.8. What is the best way to store nasturtium seeds?

Store nasturtium seeds in airtight containers in a cool, dark, and dry location.

10.9. Can I eat nasturtium flowers and leaves?

Yes, both nasturtium flowers and leaves are edible and have a peppery flavor.

10.10. Are nasturtiums good for companion planting?

Yes, nasturtiums are excellent companion plants for vegetables, such as tomatoes and cucumbers, as they can deter pests and attract pollinators.

Saving nasturtium seeds is a simple and rewarding way to ensure a beautiful and productive garden year after year. By following the tips and guidelines outlined in this guide, you can successfully collect, dry, store, and plant your own nasturtium seeds. For more expert advice, cost-saving tips, and gardening resources, visit savewhere.net today. Save money, embrace sustainability, and enjoy the beauty of nasturtiums in your garden.

Address: 100 Peachtree St NW, Atlanta, GA 30303, United States.

Phone: +1 (404) 656-2000.

Website: savewhere.net.