Helianthemum nummularium

From Permawiki
Jump to navigation Jump to search
Helianthemum nummularium
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:5
Soil pH:5.6-8.4
Evergreen Self Pollinated
Height:2'
Width:3'
Speed:Fast
Blooms:Early Summer-Early Fall
Native to:
Medicinal Rating:
Tea:Yes
Poisonous

Helianthemum nummularium (common name: common rockrose)

Propagation: Seed - sow spring in a greenhouse. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.

Cuttings of half-ripe wood, 6 - 8cm with a heel, late summer in a sandy soil in a frame[1].

Cultivation: Requires an open sunny position in a light well-drained soil with a pH between 5.5 and 8[1].

Plants are hardy to at least -10°c[1].

A vigorous plant suitable for the rock garden, crevices in walls or gravel beds[1]. Plants are short-lived, though, soon becoming leggy or sparse, and require fairly frequent replacement[1].

The flowers only open in bright sunshine[1].

Plants resent root disturbance and should be placed in their permanent positions as soon as possible[1].

A polymorphic species[2], there are some named forms that have been selected for their ornamental value[1].

Plants are generally pest and disease-free[1]. Plants in this genus are notably resistant to honey fungus[1].

Range: Europe, including Britain, south and east to Spain and Iran in W. Asia.

Habitat: Basic grassland and scrub, to 600 metres[3].

Medicinal: The plant is used in Bach flower remedies - the keywords for prescribing it are 'Terror', 'Panic' and 'Extreme fright'[4]. It is also one of the five ingredients in the 'Rescue remedy'[4].

Usage: A prostrate growing plant, it can be used as a ground cover[2].

Pollinators: Insects, self

Soil: Can grow in light, medium, and heavy soils.

In Leaf: Evergreen

Flower Type: Hermaphrodite

Also Known As: H. chamaecistus. Mill. H. vulgare. Gaertn.

Links

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  2. 2.0 2.1 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  3. Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
  4. 4.0 4.1 Chancellor, Philip. Illustrated Handbook of the Bach Flower Remedies. C W Daniel, 1985.