Planetagarden
Helianthemum are best planted in well-drained soil of loam, chalk, clay and sand within a neutral or alkaline PH balance. Helianthemum are best positioned in an area of full sun. Amend heavy soils with a generous amount of organic matter and mix thoroughly to improve drainage and growing conditions.
- When can I cut back my helianthemum?
- Is helianthemum a perennial?
- How do I take a cutting from a helianthemum?
- How do I take a cutting from a rock rose?
- Can you divide helianthemum?
- What does Rock Rose look like?
When can I cut back my helianthemum?
If the plants do get old and woody and perhaps too untidy then they may be pruned back. Pruning is best done in early spring but is possible at any time during the growing season. That is the only maintenance the plants should need.
Is helianthemum a perennial?
Helianthemums or “Rock Roses” smother themselves in flowers of either white, yellow, pink, orange or red, all summer. Prune hard after flowering to keep compact and encourage another flush of flowers. ... Average height 20cm(8in).
How do I take a cutting from a helianthemum?
Carefully cut a section of non-flowering, fresh foliage of two to three inches in length from the plant using a knife. Take your cut just below a leaf for optimum rooting. Remove a few of the lower leaves from the off cut; this is the area of the stem which will be pushed under the soil.
How do I take a cutting from a rock rose?
Dip the cuttings in hormone rooting powder and insert them around the edge of a small pot (an 8cm square pot will hold 4 to 8 cuttings, depending on the size of leaves). Enclose in a propagator or plastic bag until they will no longer wilt, then give some ventilation.
Can you divide helianthemum?
It is possible to propagate Helianthemum by semi-ripe cuttings during early summer.
What does Rock Rose look like?
The large flowers are deep rose or purple. The shrub is attractive enough to use as a specimen, and it also looks great in groups. ... White Rockrose (Cistus corbariensis) has cheery white flowers, usually with yellow centers and sometimes with brown spots near the base of the petals. It grows 4 to 5 feet tall and wide.
