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Astilbe is a popular perennial plant known for its beautiful plume-like flowers and lush foliage. Dividing astilbe roots is a great way to propagate and rejuvenate your plants. Proper harvesting and storage of roots after division ensure healthy growth in the following seasons.
When to Harvest Astilbe Roots
The best time to harvest astilbe roots is in early spring or late fall, when the plant is dormant. Avoid harvesting during the flowering season to minimize stress on the plant. Wait until the foliage has died back naturally, indicating it’s the right time for division and root collection.
Tools Needed for Harvesting
- Sharp garden spade or shovel
- Garden fork
- Pruning shears or garden scissors
- Gloves
- Clean bucket or wheelbarrow
Steps to Harvest Astilbe Roots
Follow these steps for a successful harvest:
- Mark the plants you wish to divide to avoid confusion.
- Carefully loosen the soil around the plant using a garden fork or spade, working gently to avoid damaging the roots.
- Lift the entire clump out of the ground and shake off excess soil.
- Use pruning shears to cut the root clump into smaller sections, ensuring each has healthy roots and at least one growth bud.
- Inspect the roots for any signs of disease or rot, removing damaged or dead parts.
Cleaning and Preparing Roots for Storage
After harvesting, clean the roots gently with water to remove soil. Allow them to dry in a well-ventilated area for a few days. This helps prevent mold and rot during storage.
Storing Astilbe Roots
Proper storage conditions are essential for root health. Follow these tips:
- Wrap roots in damp sphagnum moss or peat moss to maintain moisture.
- Place wrapped roots in a paper bag or breathable container.
- Store in a cool, dark place with temperatures between 32°F and 40°F (0°C to 4°C).
- Check periodically for signs of mold or drying out, re-moistening if necessary.
Tips for Successful Replanting
When spring arrives, prepare the soil by loosening and enriching it with compost. Plant the divided roots at the same depth they were growing before. Water thoroughly and mulch to retain moisture. With proper care, your astilbe will thrive and produce beautiful blooms.