For lasting arrangements about two to three days for fresh cut flowers , take our advice and gather blooms in the morning. Pick ones that are open and colorful. Mature flowers with a slightly papery feel will hold up best. Immediately place the stems, cut at an angle, in a bucket of water. Hydrangeas prefer temperatures between 50 and 70 degrees Fahrenheit, but can also do well with slightly higher temperatures.
Hydrangeas must be kept fully watered at all times. Never let the soil dry out completely, which will kill the plant. If it doesn't have a saucer, get one. Water in small amounts several times a day for best results. If you insist on fertilizing, make sure the brand you use is properly balanced for indoor potted hydrangeas. With large blooms in pink, blue and white, hydrangea bushes are a visually striking and popular garden plant.
Individual hydrangea blooms can last for weeks at a time, but the plant flowers throughout the entire spring-summer season. This begs the question if non-potted hydrangea blooms last longer than potted hydrangea blooms? In theory, no. If potted hydrangeas are well looked after, their blooms will last equally long as those of garden planted hydrangeas.
In practice, things are a bit different, because many novice gardeners might have trouble with caring for a potted hydrangea. You can help hydrangea blooms last longer if you pay special attention to several aspects while caring for these plants. The tips below can be applied to both potted and non-potted hydrangeas. Moist soil will keep your hydrangea well hydrated and will keep flowers from wilting.
Pay special attention to how moist the soil is during hot summer days to prevent the plant from drooping and blooms from fading too soon. Hydrangeas that you bring home from the garden center usually come in a small pot.
Bigleaf hydrangeas are known to change bloom colors based on the soil properties; a plant that blooms pink one year can bloom blue the next. Adding aluminum sulfate to the soil encourages blue flowers, while adding hydrated lime brings pink blooms, which appear in alkaline soils. Cultivars include "Ayesha," "Nikko Blue" and "Preziosa.
The smooth hydrangea Hydrangea arborescens blooms longer than other hydrangeas, often showing color from early June through September.
Cultivars include the white "Anabelle" and pink "Invincibelle Spirit. Cut them down to within 6 to 12 inches of ground level. Panicle hydrangeas Hydrangea paniculata get a later start in their blooming season, preferring to bloom in the heat of summer rather than the cool weather in spring.
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