Tree Ivy (x Fatshedera lizei) is a unique ornamental plant, a hybrid of English Ivy (Hedera helix) and Japanese Aralia (Fatsia japonica). This combination results in a specimen that exhibits both the vining tendencies of ivy and the shrub-like characteristics of aralia, making it versatile for various garden and indoor settings.
Identifying Tree Ivy
Tree Ivy has a distinctive appearance. Its leaves are typically large, glossy, and deeply lobed, resembling English Ivy but often larger and thicker, inheriting substance from Japanese Aralia. These five-lobed leaves can range from 4 to 10 inches in length.
The growth habit is unique: it initially vines or trails, but with maturity, develops a more upright, shrub-like form. It can climb with support or stand self-supported as a bushy shrub, depending on training and pruning. While x Fatshedera lizei is most common, variegated forms with cream or yellow-streaked leaves are also available.
Cultivating Tree Ivy
Tree Ivy thrives in bright, indirect light indoors or partial shade outdoors. Direct, intense sunlight can cause leaf scorching, especially for all-green varieties.
It requires consistent moisture, with thorough watering during the growing season. Allow the top two inches of soil to dry out slightly between waterings to prevent root issues. The plant prefers well-draining soil rich in organic matter, such as an all-purpose potting mix or loamy soil amended with perlite or sand.
Tree Ivy prefers average indoor temperatures (60-75°F / 16-24°C) and tolerates moderate humidity. Regular misting can be beneficial in drier indoor environments. During the active growing season (spring through summer), monthly feeding with a balanced liquid fertilizer supports growth.
Managing Tree Ivy Growth
Pruning is important for managing Tree Ivy’s growth and maintaining its shape. It controls size, promotes bushier growth, and removes leggy stems. Pinching off new growth tips encourages branching, as stems do not typically branch on their own.
Propagation is straightforward through stem cuttings. Take healthy stem-tip cuttings, 4-5 inches long, remove lower leaves, and insert into moist rooting soil. Placing cuttings in a warm, well-lit environment and maintaining soil moisture encourages root development.
Tree Ivy exhibits vigorous growth, especially outdoors. Its stems can root where they touch the ground, leading to rapid spread if not managed. Regular pruning and training are needed to contain growth, particularly when grown as a structured shrub or on a trellis.
Potential Challenges and Solutions
While generally resilient, Tree Ivy may encounter common plant issues. Pests like spider mites, mealybugs, and scale insects can infest the plant. Addressing these promptly with insecticidal soaps or horticultural oils manages infestations.
Overwatering is a common cause of root rot, manifesting as yellowing leaves or leaf drop. Ensuring proper drainage and allowing the soil to dry slightly between waterings prevents such fungal problems. Other issues include browning leaf tips (low humidity) and leggy growth (insufficient light). Adjusting environmental conditions like light exposure or humidity resolves these issues.