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Summary
Physical Characteristics

Houstonia caerulea is a PERENNIAL growing to 0.1 m (0ft 4in) by 0.1 m (0ft 4in) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 4.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid and neutral soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Anotis coerulea (L.) G.Don. Anotis gentianoides (Endl.) Walp. Hedyotis brachiata Miq. ex Hook.f. Hedyotis caerulea (L.) Hook. Hedyotis caerulea f. albiflora (Millsp.) Fosberg. Hedyotis caerulea f. benkei Fosberg. Hedyotis caerulea var. faxonorum (Pease & A.H.Moore) Fosberg. Hedyotis gentianoides Endl. H. caerulea f. albiflora Millsp. H. caerulea f. caerulea. H. caerulea var. caerulea. H. caerulea var. elatior (Michx.) Pursh. H. caerulea var. faxonorum Pease & A.H.Moore. H. caerulea var. piersii Barbour. H. caerulea var. toxonorum Stevens. H. faxonorum (Pease & A.H.Moore) Fernald. H. grandiflora Raf. H. linnaei Michx. H. linnaei var. elatior Michx. Oldenlandia caerulea (L.) A.Gray. Poiretia erecta J.F.Gmel.
Plant Habitats
Edible Uses
Edible Parts: Flowers Leaves
Edible Uses:
Raw; Leaves. Flowers in salads. No further information found.
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
None known
References More on Medicinal Uses
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Other Uses
Groundcover. This plant is attractive to bees, butterflies and/or birds. Uses: Alpine & Rock gardens, Containers, Edging, Waterside, Wild Flower, Woodland.
Special Uses
Food Forest Ground Cover
References More on Other Uses
Cultivation details
A low creeping mat of tiny green leaves. Prefers evenly moist soil and acidic conditions. Full Sun or Partial Shade. Soil Type: Normal to Clay. Soil pH: Neutral to Acid.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
The PFAF Bookshop
Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).
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Plant Propagation
Seed or division. Divide the rootball. Seed - Direct sow as soon as the ground can be worked in spring. Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry.
Other Names
If available other names are mentioned here
Azure bluet, Quaker ladies, little bluet
Native Range
NORTHERN AMERICA: Canada, Québec (south), Nova Scotia, Ontario (south), United States, Connecticut, Indiana, Maine, Massachusetts, Michigan (south), New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Illinois, Iowa (east), Missouri (southeast), Wisconsin, Alabama, Arkansas, Delaware, Georgia, Kentucky, Louisiana (north), Maryland, Mississippi (northeast), North Carolina, South Carolina, Tennessee, Virginia,
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
None Known
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
L.
Botanical References
Links / References
For a list of references used on this page please go here
Readers comment
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Subject : Houstonia caerulea
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