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Fritillaria Grow Guide

Acid soil Local Gardener - 17th February 2025

Fritillaria is a genus of striking and unusual spring-flowering bulbs, prized for their exotic, nodding flowers and bold presence in the garden. With species...

Ammonia

A Local Gardener - 17th February 2025

Ammonia Chemical Formula: NH₃ Definition:Ammonia is a colorless, pungent gas composed of nitrogen and hydrogen. It is a naturally occurring compound found in the environment, animal...

American Gooseberry Mildew Scientific Name: Podosphaera leucotricha (formerly Sphaerotheca mors-uvae) Definition:American gooseberry mildew is a fungal disease affecting gooseberries (Ribes spp.) and currants, caused by Podosphaera...

American Blight

A Local Gardener - 17th February 2025

American Blight Alternative Names: Woolly Apple Aphid Infestation Definition:American Blight is a common term referring to infestations of the woolly apple aphid (Eriosoma lanigerum), a sap-sucking...

Alum

A Local Gardener - 15th February 2025

Alum (Potassium Aluminium Sulphate) Synonyms: Potash Alum, Potassium AlumChemical Formula: KAl(SO₄)₂·12H₂OCommon Sources: Natural minerals (Alunite, Bauxite), Industrial synthesis Botanical and Historical Context Alum is not a plant-derived...

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Breaking

RHS Hardiness Ratings	USDA Plant Hardiness Zones	Approximate Temperature Range (°C)
H1a H1b H1c	13 12 11	>15°C 10 to 15°C 5 to 10°C
H2	10b	1 to 5°C
H3	9b to 10a	-5 to 1°C
H4	8b to 9a	-10 to -5°C
H5	7b to 8a	-15 to -10°C
H6	6b and 7a	-20 to -15°C
H7	6a	Below -20°C

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