[Indoor plants](https://dunger.ua/en/blog/categories/indoor-plants) # How to care for a flowering hydrangea indoors Published 2026-11-10 Updated 2026-11-10 To read 7 min Find the right spot for a gift hydrangea, check watering and drainage, and decide whether to move the plant outside after flowering. Put a flowering gift hydrangea in a bright, cool place out of direct midday sun. Check that water drains from the inner pot and keep the growing mix evenly moist. Plants sold this way are usually bigleaf hydrangeas, Hydrangea macrophylla. Greenhouse growers prepare them to flower for sale, so the display can start much earlier than bloom in the garden. While the flower heads are fresh, the main jobs at home are keeping the plant cool and protecting the roots from both drying out and sitting in water. ## Where to place a florist's hydrangea indoors Choose bright, filtered light and check the spot at different times. A cool window in the morning can get much warmer after lunch. If a radiator heats the sill, move the pot to a bright spot to one side. Keep foliage away from a blast of heated air and from freezing glass on cold days. Check that an open window does not direct cold air straight at the plant when you air the room. Remove clear wrapping from around the leaves after transport. If the inner pot is wrapped in foil or sits in a decorative planter, lift it out to see what is underneath. A cover can hide water that drains from the holes. After watering, let the inner pot drain before putting it back. If water keeps collecting where you cannot easily see it, try a saucer you can empty without moving the whole display. ### Check the pot when you bring it home - Keep the label or photograph the cultivar name. - Check the inner pot for drainage holes and the cover for standing water. - Feel the mix in a few places to distinguish a dry edge from a wet center. - Set the plant in filtered light away from a radiator or freezing draft. ## How to keep the growing mix moist Feel the surface and, if the pot is easy to handle, lift it. Its weight after watering and draining gives you a reference for a hydrated root ball. When the surface begins to feel dry, water slowly across the mix, let excess run out and empty the saucer. How often you need to water depends on the size of the pot, the light, the room temperature and how quickly the mix dries at home. Check again when the weather or heating changes. Watch where the water goes. If it rushes through a gap between a shrunken dry root ball and the pot wall, check the middle before calling it watered. Try wetting the surface gradually in small passes and giving the mix time to absorb the water. Let the excess drain afterward. If the center is already wet, wait before watering again. Remove standing water and check that the mix starts to dry gradually. ### What drooping leaves and flower heads can tell you Leaves can droop when the mix is too dry or when it stays wet. Check the mix and the weight of the pot, then recall when it was last watered. If strong sun heated the glass during the day, move the plant to a cooler bright spot and check it again. A single old flower head can soften while leaves and new shoots remain healthy. Compare different parts of the plant before deciding the whole pot needs more water. If the newest leaves turn pale between green veins, check the roots, the mix and how you have been watering. See whether the pattern is repeating on new leaves or affecting just one old leaf near the base. [The guide to hydrangea chlorosis](https://dunger.ua/en/blog/hydrangea-chlorosis-guide) explains how to distinguish similar-looking signs. Flower color and the appearance of one leaf give too little information to identify the cause. ## Do you need to repot or feed a plant in flower? If the hydrangea is flowering, the root ball takes up water normally and the drainage holes work, leave it in the inner pot during the display. A waterproof cover can be removed without disturbing the roots. Note if the center stays wet long after you empty the saucer or remains dry after careful watering. After flowering, those observations will help you decide whether to change the pot or mix. Before buying materials, read [the guide to growing mixes and soil for hydrangeas](https://dunger.ua/en/blog/hydrangea-soil-guide). Do not add granules to the gift pot to extend flowers that are already open. The small root ball needs steady moisture and drainage. You may not know what the grower already included in the mix. Avoid trying to change the color by adjusting acidity on sight. The cultivar and its growing conditions influence flower color. The plant already blooming indoors benefits more from consistent care than from a color experiment. ## What to do after flowering in Ukraine Look up the cultivar and check whether it can overwinter at your site. A flowering florist's plant may be less hardy than nursery stock sold specifically for outdoor planting. Flower buds can still be damaged even when the roots survive winter. The shape of a flower head or the size of the pot cannot tell you its hardiness. If the cultivar remains unknown, keep the option of sheltering the pot and allow for the possibility that it may not flower again. If you can confirm that it suits the garden, introduce it to outside conditions gradually after flowering and after frost danger has passed. Begin with shelter from strong sun and wind. In Ukraine the temperatures beside a sunny wall, on a balcony and in a low part of the same yard can differ. Check your local forecast before moving a greenhouse-grown pot outdoors on a cold night. Follow [the guide to moving a potted hydrangea into the garden](https://dunger.ua/en/blog/planting-potted-hydrangeas-outdoors) for the move. An established shrub already in the ground has its own requirements in [the guide to moving an established garden hydrangea](https://dunger.ua/en/blog/moving-established-hydrangeas). ### If it stays in a container Work out where you can protect the pot in cold weather. A glazed balcony can still freeze. The floor near an outside wall may be colder than a shelf indoors, so check the temperature where the pot will actually stand. On an open balcony, check whether rain can drain freely. Keep a note of where the plant spent winter and which shoots survived. In spring that record can help you decide whether it is a good candidate for the garden. Give yourself time to decide where the plant will stay once the display fades. Many bigleaf hydrangeas carry flower buds on older shoots. A hard cut made without knowing the cultivar can remove next year's bloom. If your aim is another display in the flat, bear in mind that greenhouse forcing requires specific conditions. A regular windowsill does not reproduce them, and another flowering display depends on the cultivar and how you can grow it. ## Feeding an established outdoor hydrangea  ### [Complex fertilizer for hydrangea, rhododendron, azalea granular](https://dunger.ua/en/mineral-fertilizers/small-packaging/for-landscape-design/20-complex-fertilizer-for-hydrangea-rhododendron-azalea) If a garden hydrangea has established in the ground and needs feeding, see the granular compound for garden hydrangeas. Check the spring and summer timing, the instructions for moist soil and the guidance for the shrub's size and age. Compare the 0.5, 1 and 5 kg packs based on the garden plants you need to feed. Keep the flowering gift pot indoors out of that calculation. [Plan areas in My Garden](https://dunger.ua/en/my-garden) ## Questions about flowering hydrangeas in pots ### Check the mix regularly and water when the surface begins to dry. It may take longer to reach that point in a cool room. Empty the saucer afterward. When the plant wilts, first check whether the root ball is actually dry. Leaves can also droop while the mix is already wet. ### ### ## Rate this article No ratings yet. Be the first! Rate this article ## Discussion(1) This discussion is shared across all article languages. 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