Your indoor jasmine is full of buds – here is what it needs

This guide is for Jasminum polyanthum, a vigorous climber with divided leaves and strongly scented white flowers opening from pink buds. It is often sold trained around a small hoop. The yellow-flowered garden winter jasmine, Jasminum nudiflorum, is a different species. Nor does every plant with “jasmine” in its common name need the same care.

Keep the pot near a window rather than permanently on a dim sideboard. An east- or west-facing window often works; a bright south-facing window is another option in winter. Strong summer sun through glass is different: introduce it gradually and protect the plant from overheating. Our light guide helps you compare possible spots.

For a plant bought in bud or flower, a spot around 15 °C (59 °F) is usually a good choice. Above a working radiator, conditions are usually warmer and drier than the flowers prefer. Avoid blasts of cold air when ventilating, and measure the temperature beside the plant if needed. The RHS places indoor jasmine among plants for bright, cool rooms.

Feel the mix briefly each day at first, especially in a small pot carrying lots of foliage. Water as the surface starts to dry while the root ball below is still lightly moist. Do not wait for all the mix to dry out and the shoots to droop.

Take the inner pot out of its decorative cover, water slowly with tepid water and let the excess drain away. Return it without leaving a reservoir underneath. Our watering guide walks you through it. A plant growing very little in a cool winter spot usually needs water less often than in summer; let the mix guide you.

Use a Plantly care reminder as a prompt to feel the mix, not an automatic instruction to water. If it is too early, you can give that feedback instead of marking an action you have not done as complete.

If the pot is light and the root ball is dry, water thoroughly and let it drain. If the mix stays wet, do not add more water just in case. Empty the outer pot and make sure drainage is clear. Shoots that keep wilting despite persistently wet mix call for the root inspection in our overwatering and root rot guide.

If moisture seems right, look for heating, cold drafts and poor light. The University of New Hampshire explains how drafts can increase water loss and bud drop. Clear fallen flowers off the mix; an extra feed will not solve this.

Jasmine appreciates air that is not too dry. Use a hygrometer before making changes. Occasional misting raises humidity only briefly; persistently dry air is better addressed with a different spot or a suitably adjusted, regularly cleaned humidifier. The flowers do not need a daily shower. Our humidity guide explains useful measures without encouraging damp walls.

After flowering, shorten overlong shoots and thin out congested growth. Use clean, sharp scissors or pruners and retain healthy foliage. Our pruning basics cover tools and technique. Do not cut through bud-bearing shoots simply because the little hoop looks crowded.

Guide new vines loosely along a suitable support. Jasmine will not stay a compact floral wreath on its own: over time, it needs more room or appropriate pruning.

A healthy jasmine does not need to be discarded once its flowers fade. Feed during active growth according to the product instructions, taking fertilizer already in the mix into account. A newly purchased flowering pot does not need an immediate extra feed. Repot when needed after flowering, during the following period of growth, not simply because a year has passed.

Choose a free-draining, peat-free mix and a container with drainage holes. The RHS recommends a peat-free, loam-based potting mix; our repotting guide covers sizing and practical steps.

A cool period plays a part in forming new buds, but sources give conflicting temperatures. The Chicago Botanic Garden describes about 4–10 °C (40–50 °F) in autumn before bud set, whereas the general RHS jasmine guide advises keeping it above 13 °C (55 °F) over winter. These do not make a safe, universal cold-treatment recipe. Plan deliberate flower preparation using your nursery's guidance and a bright, frost-free spot where you can control the conditions, not by experimenting with frost on the balcony.