Chastetree
- Botanical Name
- Vitex agnus-castus
- Min Zone
- 6
- Max Zone
- 9
- Height
- 8 to 15 feet
- Width
- 5 to 20 feet
- Flowers
- Summer: lavender
- Light
- Full sun to part shade
- Soil
- Moist, well-drained, loose
- Planting & Care
- Not reliably hardy in Zone 5
- Plant in sheltered location north of Zone 7
- When grown in Zones 5 & 6, plants usually die back to the ground in winter - the roots survive and the plant will push out 4 to 7 feet of new growth along with flowers the next growing season
- In Zones 5 & 6, treat as you would butterfly bush or Russian sage, cut back dead branches in spring and wait for new growth to emerge
- Propagate by softwood cuttings in early summer or by seeds
- Tolerates moderate salt air exposure
- Problems
- Leaf spot and root rot are occasonal problems
- Varieties
- Silver Spire - white flowers
- Blushing Spires - soft pink flowers
- Shoal Creek - large, blue-violet flowers borne on 12 to 18 inch long inflorescences
- Montrose Purple - violet flowers
- Rosea - pink flowers
- Lilac Queen - lavender flowers, broad spreading
- Arnold's Cutleaf - blue-purple-lavender flowers, dissected leaflets
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