Florist's Guide to Harvesting Seeds from Cut Flowers

Harvesting seeds from cut flowers is a rewarding endeavour that allows you to propagate your favourite varieties. To ensure a successful seed collection, follow these steps:

1. Select Healthy Plants

Choose cut flowers from healthy plants that are disease-free and robust. Ideally, select flowers that have fully bloomed but are past their prime, as they will have developed seeds.

2. Timing

The best time to harvest seeds is after the flowers have faded and the seed pods or heads have dried. This is typically several weeks after the blooms have died.

3. Identify Seed Pods

Different flowers produce seeds in various forms. Look for seed heads, pods, or capsules, depending on the plant type:

• Sunflowers: Large, round heads with black seeds.

• Pansies: Small capsules that turn brown when ready.

• Cosmos: Feathery, light seeds within their dried heads.

4. Gather Tools

Before harvesting, gather necessary tools:

• Sharp scissors or pruning shears

• Paper bags or envelopes for storage

• Labels or markers for identification

5. Harvesting Seeds

Carefully cut the seed heads or pods from the plant.

• For larger flowers like sunflowers, slice the head off, leaving a small stem for easier handling.

• For smaller flowers, use scissors to snip the pods or heads directly.

6. Drying Seeds

Lay the harvested seed heads on a flat surface in a cool, dry place. Allow them to dry for a week or two, ensuring no moisture remains, which can lead to rot or mould.

7. Extracting Seeds

Once dried, gently rub the seed heads to release the seeds. For pods, carefully open them and collect the seeds inside.

8. Cleaning and Storing Seeds

Remove any debris or chaff from the seeds. Place the clean seeds into paper envelopes or air-tight containers.

Label each container with the flower name and date of collection to keep track of your seeds.

9. Proper Storage Conditions

Store seeds in a cool, dry, and dark place. A refrigerator can be ideal for prolonging seed viability, as it helps maintain a stable temperature.

10. Testing Germination

Before planting, conduct a germination test to ensure seed health. Place a sample of seeds on a damp paper towel, cover, and maintain moisture. After a week, check how many seeds have sprouted.

By following these steps, you can enjoy the process of harvesting and replanting your favourite flowers year after year, adding personality and continuity to your floral arrangements.