RHS Epiphyllum ackermannii
An erect, perennial epiphytic cactus with flat thin slightly scalloped, fleshy stems, rarely 3-ribbed. The crimson to scarlet, red funnel-shaped flowers to 12cm have contrasting yellow pollen and white stigma lobes
0.1-0.5 metres
0.1-0.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Under glass grow in acidic, moisture-retentive but sharply-draining compost, or a proprietary epiphytic cactus compost, in bright filtered light and moderate to low humidity. During the growing season water freely applying a balanced fertiliser for acid loving plants at half strength every two weeks from April to end September. Water only moderately and cease fertiliser applications during the winter. In frost free areas grow in hanging baskets or epiphytically in partial shade
Propagate by seed at 27°C as soon as ripe in acidic peat-free compost. Softwood cuttings may be taken in late spring
No pruning required
Can be susceptible to scale insects and mealybugs under glass
Generally disease-free, except where grown in poorly draining soils which can result in root rot