Photo: Jamain, CC BY-SA 3.0 · source
Pruning guide · Perennial
Spiderwort: when and how to prune
Tradescantia × andersoniana
Spiderwort is best pruned in March and July.
| Pruning months | March and July |
|---|---|
| Flowering | June–September |
| Good for bees, butterflies and birds | Yes, for bees |
| Native to Belgium | No, planted |
| Poisonous to people and pets | Yes, take care with children and pets |
Spiderwort: when to prune it?
Cut the whole plant back to just above the ground after the first flush of flowers, usually in July. In March, clear away the old, dead leaves.
Spiderwort: how to prune it?
- Cut all stems and leaves back to 5–10 cm above the ground.
- Then water and add a spadeful of compost: within a few weeks fresh leaves appear, followed by a second flowering.
- In between, snip off faded clusters if you do not want seedlings.
- In March, clear away last year’s dead foliage.
How much to cut, and how often?
- There are 2 pruning periods a year: March and July. You don’t have to prune in every one.
What does it mean for wildlife?
- Spiderwort flowers in June–September, when it attracts bees.
- If pruning falls during flowering, wait until it is over or leave part of the plant to flower, so bees and butterflies still benefit.
Caution: Wear gloves: the slimy sap can irritate the skin. Spiderwort is poisonous: wear gloves and keep clippings away from children, pets and livestock.
Nearby: related pruning guides
Plant profile: Spiderwort · Pruning calendar and basic rules
This guide is compiled from the Bladwijzer plant profile and pruning calendar.