What You Should Know About Lemon Cypress

Lemon cypress trees (Cupressus macrocarpa ‘Goldcrest’), also known as Goldcrest Cypress or Lemon-scented Cypress, are small to medium-sized evergreen conifers known for their bright yellow-green foliage and refreshing citrus fragrance. They are a cultivar of Monterey cypress (Cupressus macrocarpa) and are widely appreciated for their distinctive color, compact form, and pleasant scent.

Lemon cypress trees are popular in landscaping, container gardening, and as decorative plants, particularly due to their unique aesthetic and fragrance.

We have Lemon Cypress trees available in 2″, 4″, and 6″ pots.

Key Characteristics of Lemon Cypress Trees:

Foliage:

  • The most striking feature of the lemon cypress is its vibrant yellow-green foliage, which has a soft, feathery texture. The needles are fine and densely packed, giving the tree a lush, bushy appearance.
  • The tree has a natural lemon-like fragrance when its foliage is brushed or disturbed, making it a favorite for adding a fresh, citrusy scent to gardens and patios.
  • Over time, the bright yellow hue may mature into a more subdued gold or yellow-green, especially in cooler temperatures.

Shape and Size:

  • Lemon cypress typically grows as a pyramidal, columnar tree with a narrow, upright shape. It can reach a height of 10-15 feet, though it is often smaller in container gardening or when pruned.
  • The tree can spread up to 4-6 feet in width at its base, making it a relatively compact option for small gardens or as an accent plant.
  • It has a slow to moderate growth rate, gaining about 6-12 inches per year under ideal conditions.

Hardiness:

  • Lemon cypress trees are generally hardy in USDA zones 7-10, which means they thrive in mild climates with cool, wet winters and warm, dry summers.
  • They are not tolerant of frost or prolonged cold spells, so they are not suitable for areas with harsh winters. However, they can be grown in containers and brought indoors in colder climates during winter.

Scent:

The tree is known for its strong lemon fragrance, which is particularly noticeable when the foliage is touched or disturbed. This citrusy scent is a signature feature of the plant and contributes to its appeal, especially in outdoor living spaces.

Care Tips for Lemon Cypress Trees:

Light:

  • Lemon cypress trees prefer full sun but can tolerate some light shade. For the brightest foliage color and the most vigorous growth, they should be planted in a spot that receives at least 6 hours of direct sunlight per day.
  • In shadier conditions, the tree may become leggy, and its color may be less vibrant.

Soil:

  • These trees prefer well-drained, slightly acidic to neutral soil. They do not do well in heavy, waterlogged soil, so ensure the planting area has good drainage.
  • They can tolerate a variety of soil types, but they thrive in sandy, loamy soils that do not retain excess moisture.

Watering:

  • Lemon cypress trees need regular watering, especially during dry periods, but they do not like to sit in waterlogged soil. Allow the soil to dry out between waterings to prevent root rot.
  • Overwatering can lead to yellowing leaves and poor growth, so it’s important to water deeply and consistently without saturating the soil.

Fertilization:

  • Fertilizing lemon cypress is not strictly necessary but can encourage healthy growth, especially for container-grown trees. Use a balanced, slow-release fertilizer in the spring when new growth begins. Avoid over-fertilizing, as this can cause excessive, leggy growth.
  • For garden-grown trees, applying a light layer of compost or mulch around the base can help improve soil structure and provide nutrients over time.

Pruning:

  • Lemon cypress trees generally have a naturally tidy, pyramidal form, so they don’t require heavy pruning. However, light pruning can help maintain their shape, particularly in containers or when they become a bit too large.
  • Prune any dead or damaged branches as needed. Avoid cutting back into old wood, as cypress trees may not regenerate from that point.

Winter Care:

  • Lemon cypress is not frost-hardy and may struggle in temperatures below freezing. If you live in a colder region, it is recommended to plant it in a container so you can bring it indoors during the winter months.
  • For garden-grown trees in temperate climates, providing some winter protection (such as covering the tree with burlap or placing it in a sheltered spot) can help prevent damage from cold winds and frost.

Pests and Diseases:

  • Lemon cypress trees are generally resistant to pests and diseases but may occasionally attract spider mites, scale insects, or aphids. Check the tree regularly for signs of pests, such as sticky residue or webs.
  • They can also suffer from fungal diseases such as root rot if the soil is too wet or poorly drained.
  • Cypress canker is another disease that can affect the tree, causing dieback in severe cases. Prune affected branches and remove any infected material.

Uses for Lemon Cypress Trees:

Ornamental Landscape:

  • Lemon cypress trees are primarily used as ornamental trees for small gardens, landscaping, and container gardening. Their bright foliage and unique scent make them excellent focal points or accents.
  • They work well in entryways, patios, courtyards, or as a specimen tree in a small garden or as part of a hedge.

Indoor Container Plants:

  • Due to their relatively small size and slow growth, lemon cypress trees are ideal for indoor container plants, especially in climates where outdoor growing is not feasible in winter.
  • They are often used as decorative indoor trees or miniature Christmas trees because of their lovely fragrance and compact shape.

Topiary and Pruning:

Hedges or Privacy Screens:

  • When planted in a row, lemon cypress trees can form a narrow hedge or privacy screen, ideal for adding a bit of height and structure without taking up too much space.
  • Their narrow, columnar form makes them a good choice for urban gardens, where space may be limited.

Troubleshooting:

  • Yellowing or Browning Needles: This is often a sign of overwatering or root rot. Ensure the tree is planted in well-draining soil and that the watering schedule is appropriate.
  • Leggy Growth: If the tree is not getting enough sunlight, it may become leggy, with sparse growth. Ensure it’s planted in a sunny location.
  • Pests: Watch for spider mites or aphids, which can cause damage to the foliage. Treat infestations with insecticidal soap or neem oil.

Conclusion:

Lemon cypress trees are an attractive, aromatic evergreen option for those seeking a compact tree with bright foliage and a refreshing lemon scent. Their versatility in both landscaping and container gardening, along with their pleasant fragrance, makes them a unique addition to any garden or home. They are low-maintenance and slow-growing, making them a great choice for smaller spaces or as an accent plant in both outdoor and indoor environments. With the right care and conditions, they can thrive for many years, providing vibrant color and citrusy fragrance all year long.