Jooni
Parthenocissus
2 Species
Species
Fertilizing
Feed your Parthenocissus bonsai with diluted all-purpose fertilizer every two weeks during the growing season (spring to early autumn). A slow-release pelleted fertilizer can also be used from early spring to late autumn, replenishing every two months. During winter dormancy, reduce or stop fertilizing completely to allow the plant to rest. This fertilizing schedule is important as inadequate feeding can lead to leaf breakage and poor growth.
Placement
Position your Parthenocissus bonsai in full sun to partial shade, with protection from intense midday summer sun that could burn the leaves. The tree thrives best in bright locations, especially during spring. During winter months, protect it from extreme cold by moving it to a sheltered spot like a cold greenhouse if temperatures drop significantly. While hardy in warmer climates, younger trees particularly need protection from harsh winter conditions. Ensure good air circulation while avoiding strong winds that could damage the foliage.
Pruning
Regular pruning is essential for Parthenocissus bonsai due to its vigorous climbing growth habit. The vine-like structure will spread aggressively if not controlled through careful trimming. Perform major pruning in early spring when the plant is most hardy and can recover quickly. Use a steady hand and avoid cutting main branches, as unnecessary cuts can stress the plant. Allow creeper stalks to extend fully before pruning back to three active nodes. The fast growth rate requires consistent maintenance pruning throughout the growing season to maintain the desired shape and form.
Repotting
Repot your Parthenocissus bonsai every 1-2 years in spring, with more aggressive growing specimens potentially needing yearly repotting. Use a well-draining bonsai soil mix composed of akadama and pumice in a 2:1 ratio, or a blend of leaf mold, bark, loam and sharp sand in equal parts. When repotting, carefully remove the plant, trim back circling and overly long roots, then replant in fresh soil. The best timing is early spring before new growth begins. Ensure proper drainage by adding a layer of drainage material at the bottom of the pot.
Watering
Parthenocissus requires consistent moisture but is susceptible to root rot from overwatering. Water thoroughly every 2-3 days depending on climate and soil conditions, allowing the soil surface to become slightly dry between waterings. Water early in the morning so the plant has moisture available during the day, while ensuring all standing water drains before nightfall. During summer, maintain regular watering to keep soil consistently moist but never waterlogged. Mist occasionally to increase humidity, especially after repotting or when the air is dry.