How to Grow Cissus
Cissus rhombifolia
Cissus (Grape Ivy) is a trailing houseplant vine that tolerates lower light than most houseplants, making it easy to place almost anywhere indoors. Let the top 3–4 cm of compost dry out between waterings, feed monthly in spring and summer, and train it up a moss pole or let it cascade from a shelf. Pet-safe and forgiving of occasional neglect.
Yearly Lifecycle
Care Essentials
Feed monthly with a balanced liquid houseplant fertiliser from spring through summer. Reduce to every 6–8 weeks in autumn and stop feeding in winter. Cissus are moderate feeders — overfeeding causes salt build-up and leaf tip burn.
Watch For
- Mealybug in leaf axils and along tendrils
- Spider mites in hot, dry conditions
- Scale insects on stems
- Root rot from overwatering
- Powdery mildew in poorly ventilated spots
Pet Safety
Care Requirements
Light
Bright indirect light; tolerates lower light
Cissus thrives in bright indirect light but adapts well to lower light levels, including north-facing rooms and shaded shelves. Direct sun scorches the glossy leaves. In very low light growth slows significantly — move to a brighter spot to restore vigour.
Watering
Allow top 3–4 cm to dry between waterings
Water thoroughly until it drains freely, then wait until the top 3–4 cm of compost are dry before watering again. Reduce frequency in winter. Overwatering is the most common cause of failure — yellow lower leaves and mushy stems are the warning signs.
Fertilizing
Monthly spring to summer with balanced liquid feed
Feed once a month from spring through summer with a balanced liquid houseplant fertiliser diluted to half strength. Reduce to every 6–8 weeks in autumn and stop entirely in winter. Overfertilising causes salt build-up and brown leaf tips.
Pruning
Trim long stems in spring to encourage bushy growth
Cut back leggy or bare stems to just above a node in spring to prompt branching and keep the plant compact. Pruned cuttings root readily in water. Remove any fully yellow or dead leaves to maintain good air circulation.
Humidity
Prefers moderate to high humidity; tolerates average indoor levels
Cissus does best with humidity above 50% but adapts to typical household conditions of 40–60%. In winter when central heating dries the air, mist the leaves occasionally or stand the pot on a pebble tray with water to raise local humidity.
Growing Tips
Let it dry between waterings
Allow the top 3–4 cm of compost to dry before watering again. Cissus tolerates short dry spells far better than soggy roots — erring on the dry side prevents the root rot that kills most specimens.
Give it something to climb
Cissus produces tendrils that grip naturally. Attach new growth to a moss pole, trellis, or wire frame and the vine will climb on its own. Left unsupported it trails attractively, but trained growth tends to be fuller and more vigorous.
Increase humidity in winter
Central heating dries the air and stresses the foliage. Move the plant away from radiators, mist the leaves occasionally, or stand the pot on a pebble tray with water. Good humidity also discourages spider mites.
Trim to encourage bushiness
Long bare stems are common on older plants. Cut them back to just above a healthy node in spring — new side shoots will fill in quickly. Pruned cuttings root easily in water or moist compost.
