Wilma Goldcrest Lemon Cypress thrives outdoors in USDA zones 7 to 10 and needs full sun to keep its foliage bright and golden — too much shade dulls the color and thins the growth. Give it light, well-draining soil; like most cypress, it resents soggy roots and will not tolerate standing water. In colder zones, grow it in a container that can move to a protected spot for winter.
Planting
- Choose a sunny site. Pick a spot with at least 6 hours of direct sun and good air circulation; the more sun, the more vivid the gold.
- Check drainage. Plant in loose, well-draining soil. On heavy clay, amend with compost or plant on a slight mound so water moves away from the roots.
- Dig wide, not deep. Make the hole about twice as wide as the root ball but no deeper than the ball is tall.
- Set the root flare at grade. Position the trunk so the top of the root ball sits level with the surrounding soil. Never bury the trunk — planting too deep invites rot.
- Backfill and water in. Fill around the roots with native soil, firm gently to remove air pockets, and water deeply to settle everything.
- Mulch and space for a row. Add a 2 to 3 in. layer of mulch, keeping it pulled back a few inches from the trunk. For a low screen or hedge, space plants roughly 18 to 24 in. apart (about 60% of the 2 to 3 ft. mature width) so they knit together into a continuous golden band.
Care & maintenance
- Water. Keep the soil evenly moist (never soggy) through the first one to two years while roots establish. As an evergreen, it also needs water during dry fall and winter spells to prevent the foliage from browning and desiccating — this is especially important for container plants.
- Feed. Apply a light, slow-release evergreen or conifer fertilizer in early spring. Avoid heavy feeding, which forces weak, floppy growth.
- Light. Full sun is essential for the best color and a dense, compact form. Indoor or shaded plants stretch and fade.
- Prune. Shear lightly in spring and early summer to maintain the neat cone shape, cutting only into the green outer foliage. Like other needled cypress, it does not reliably regrow from bare, brown old wood, so never cut back hard into leafless interior branches — trim a little and often instead.
- Spacing. For a row or low hedge, hold to that 18 to 24 in. spacing so plants fill in without crowding.
- Pests & disease. Watch for bagworms (hand-pick the spindle-shaped "bags") and spider mites in hot, dry conditions, which cause stippling and bronzing — a strong spray of water and good airflow help. Avoid wet, poorly drained soil, the main cause of root and foliage problems.
- Winter care. In the cooler end of its range or in containers, shelter it from harsh, drying winds and water during winter dry spells. In zones below 7, bring container plants into a cool, bright, frost-free space.