Crocanthemum Species, Bushy Frostweed, Bushy Rockrose

Crocanthemumdumosum

Species
dumosum (doo-MO-sum)
Synonym
Helianthemum dumosum
Sun Exposure
Full Sun
Foliage
Herbaceous
Succulent
Height
under 6 in. (15 cm)
6-12 in. (15-30 cm)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
Bloom Color
Bright Yellow
Inconspicuous/none
Bloom Time
Late Spring/Early Summer
Late Summer/Early Fall
Blooms repeatedly
Other Details
Category
Alpines and Rock Gardens
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Halifax, Massachusetts

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Gardener's Notes:

0
positive
1
neutral
0
negative
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Halifax, MA (Zone 6a) | October 2007 | neutral

Helianthemum dumosum has two types of flowers and two flowering times. From May to mid-June it has yellow flowers, that appear on the ter...Read More

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