How often should indoor houseplants be watered in winter?

Most tropical houseplants reduce their transpiration and growth rate significantly during late autumn and winter due to lower light levels. The general rule is to reduce watering frequency by 40-50% compared to spring and summer. Always perform the 2-inch finger moisture test: insert your finger 2 inches into the compost and only water if the substrate feels completely dry.

When and how should I prune Wisteria in the UK?

Wisteria requires a two-stage pruning regimen to flower prolifically: (1) Summer Prune in July or August: cut back the whippy green current-season shoots to five or six leaves (approx. 15-20cm); (2) Winter Prune in January or February: cut back those same shoots further to two or three dormant buds (approx. 5-8cm) while the plant is fully dormant.

Why do houseplant leaves turn yellow with brown crispy tips?

Brown crispy tips paired with yellow margins are usually caused by a combination of low ambient humidity (common in centrally heated rooms) and uneven watering, or tap water mineral accumulation (chlorine and fluoride). Increasing humidity with pebble trays and allowing compost to dry slightly between thorough soakings will resolve the issue.

What are the three RHS pruning groups for Clematis?

Clematis are divided into three RHS pruning groups: Group 1 (early spring flowering like Clematis montana) requires minimal pruning immediately after flowering in late spring. Group 2 (large-flowered cultivars blooming in May-June and again in late summer) requires light shaping in late February. Group 3 (late-flowering like Clematis viticella) requires hard cutting back to strong pairs of buds about 30cm (1ft) above ground level in February.

Which popular indoor houseplants are safe for cats and dogs?

Pet-safe indoor houseplants include Calathea (Prayer Plants), Boston Ferns (Nephrolepis exaltata), Spider Plants (Chlorophytum comosum), Peperomia varieties, Parlor Palms (Chamaedorea elegans), and Phalaenopsis Orchids. Plants containing insoluble calcium oxalates (such as Monstera, Philodendron, and Peace Lilies) should be kept out of pets' reach.

Clematis (Large-Flowered Early Hybrid)

Clematis hybrida

Pruning Window: Early Spring (February) and Light deadhead in Summer (June)

Pruning Group: RHS Clematis Pruning Group 2

Group 2 Clematis bloom on stems produced the previous season, followed by a second late-summer flush on current season growth.

Step by Step

Early Spring tidy: In February or early March, trace stems from the top down to the first pair of plump green buds and cut off dead top growth.
Do NOT cut to ground level: Unlike Group 3 clematis (viticella), severe low cutbacks will sacrifice your May/June flowers.
After first flush: In July, lightly prune back flowered stems by one-third to encourage a repeat flush of flowers in August/September.
Planting tip: Plant clematis crown 5–8cm deeper than the nursery pot level to promote shoots from beneath the soil and safeguard against clematis wilt.

Tools Required

Fine precision secateurs, Trellis clips or soft twine

RHS (UK) Notes

A staple British wall climber. Keep 'heads in the sun, roots in the shade' by planting companion low shrubs or placing flat stones over the root zone.

USDA (US) Notes

USDA Zones 4–9. Ensure moist, cool root run with organic leaf mould.

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