Every plant in the world
Species catalog
Care data, real photos from members’ collections and a community bloom calendar – for every species.
1308 species in catalog
378 genera
98 species grown by members
All 1308 Cactus 224 Succulent 146 Orchid 91 Houseplant 192 Garden flower 305 Carnivorous 44 Herb 72 Tree / bonsai 171 Other 63
Genera: H
78 species
Hippeastrum Amaryllidaceae Keep it completely dry for 8–10 weeks from late August, then restart it for Christmas blooms. Hosta Asparagaceae Protect the emerging shoots from slugs in spring – blue-leaved kinds are tougher. Howea Arecaceae Copes with low light and dry heated air – one of the best palms for darker rooms. Hoya Apocynaceae Never cut off spent flower spurs – it reblooms from the same spot. Huernia Apocynaceae Keep it above 10 °C in winter or the stem bases rot easily. Hyacinthus Asparagaceae Forcing needs 10–12 weeks of dark, cold (5–9 °C) pre-chilling. Hydrangea Hydrangeaceae Blue on acidic soil, pink on alkaline; only thin out bigleaf hydrangeas in spring. Hylotelephium Crassulaceae Cutting it back by half in early June keeps it compact so it doesn't flop when flowering. Hypericum Hypericaceae Harvest the flowering tips around midsummer on a sunny morning. Hypoestes Acanthaceae Pinch the tips regularly to keep it bushy rather than leggy. Hyssopus Lamiaceae Cut it back to just above the woody base in spring to keep it dense and compact.
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Garden flower · HydrangeaceaeHydrangea arborescens