Many people plant hydrangeas in beds next to their homes or fences. This is because hydrangeas love the warm morning sun, but they dislike the heat of the afternoon. The best place to plant hydrangeas is in a sheltered location with sunny mornings and shady afternoons.
East Side. The east side of the house is the best planting location, as it gets the morning and afternoon sun. This is the best side of the house for your hydrangeas, traditionally.
A good rule of thumb is to calculate one and a half times the estimated maximum width of your Hydrangea and plant it at least that far from your house. And as always, you should take sun exposure into account.
East facing location is BEST for growing hydrangeas.
The intensity of the morning sun is typically milder compared to the harsher afternoon sun. This allows hydrangeas to receive sufficient light without being subjected to excessive heat and potential sunburn.
Keep good air space between the plants; don't crowd them together or against other plants. Don't give bigleaf hydrangeas too much love; if they're too comfortable (water, fertilizer, etc.), they may devote all their foliage to leaves instead of blooms.
Hydrangea Care Tips
Water at a rate of 1 inch per week throughout the growing season. Deeply water 3 times a week to encourage root growth. Bigleaf and smooth hydrangeas require more water, but all varieties benefit from consistent moisture.
A potted hydrangea can be planted in the ground at any time of the year. However, spring or fall are the best times. Wait until the frosts are over in spring, or plant in early fall when the soil will still be warm and before the frosts.
Front Yard Garden Idea With Hydrangeas, Loropetalum and Nandina. This garden design including Nandina, Loropetalum, and Hydrangea will turn any front yard into a modern garden. These flowers will be a great addition to any home and will be an attention-grabbing decoration.
Most hydrangeas prefer only morning sun. Yet one type of hydrangea can soak up the sun all day: the panicle hydrangea. While they can stand the sun, these do just fine in partial shade, too. Plus, panicle hydrangeas are the hardiest hydrangeas.
The smooth hydrangeas (H. arborescens), such as 'Annabelle', are another group of low growing shrubs for the front of the house worth growing. Their blooms are globe shaped rather than being panicle shaped. Summersweet Clethra is a must-have if you love summer blooms.
The key to any hydrangea planting is to choose the right location. This can make all the difference in your blooms. This location gets full morning sun and then dappled sunlight later on in the day. The amount of sunlight also depends on how far south or north you are, too.
Space hydrangeas anywhere from 3 to 10 feet apart, depending on the type. Always space plants based on their expected size at maturity! Gently remove the hydrangea from its container and inspect the root ball, snipping off any dead or rotting parts and teasing free the roots if the plant is especially root bound.
A general rule of thumb is to start by looking at the width of the plant. For example, Incrediball smooth hydrangeas (pictured above) reach a mature size of 5 feet tall and wide. Therefore, plants can be spaced with their centers 5 feet apart to be nearly touching at maturity.
Arranging Tips
Cut the stems so the blooms are just above the rim. For a more complex arrangement, use an opaque container and the grid method with chicken wire or tape on the opening. Bold blooms such as roses, peonies, and dahlias pair great with hydrangeas.
Generally speaking, acidic soil, with a pH lower than 6.0, yields blue or lavender-blue hydrangea blooms. Alkaline soil, with a pH above 7.0, promotes pinks and reds. With a pH between 6 and 7, the blooms turn purple or bluish-pink. To lower your pH, add garden sulfur or aluminum sulfate to your soil.
You want to make sure they are far enough from the property line, fence, building or road when you plant them. A Little Lime Hydrangea grows 3 to 5 feet tall and wide, therefore it might grow two and half feet wide from center in any direction. We planted our hedge exactly two and half feet off of the property line.
In warmer areas, many hydrangea types will suffer in the afternoon's scorching sun. The leaves and flower heads may burn, turning brown. If you notice this, that means your hydrangea is getting too much sun. Try moving it into filtered shade, or an area where it gets only a few hours of morning sun.
Some gardeners report success in turning their hydrangeas blue by applying coffee grounds to the soil. The coffee grounds make the soil more acidic, allowing the hydrangea to more easily absorb aluminum. In addition, fruit peels, lawn clippings, peat moss and pine needles, are thought to have a similar effect.
A 2-3” layer of mulch around the base will help keep the moisture in as well but remember, no “volcano” mulching (where you pile the mulch higher up next stem). Mulching around your hydrangea will encourage deep roots to develop, adding to winter hardiness.
Hydrangeas Are Toxic To Dogs
"The toxic component of the hydrangea plant is a cyanogenic glycoside." Chewing plants with this compound causes cyanide to be released. The leaves, buds, flowers, and bark all contain the toxin, so if your dog munches any part of your hydrangeas, he could get sick.
If properly maintained, these shrubs can grow between 4 and 12 feet tall, and live for decades, sharing their frothy blooms most of the summer. Hydrangeas are long-lived shrubs, sometimes living for up to 50 years if properly cared for.
As rapid growers—averaging about 2 feet of growth per year—larger varieties of hydrangeas can reach up to 15 feet tall. Applicable in growing zones 3 to 9, hydrangeas are a low maintenance plant that will return year after year with proper care.
As to when hydrangeas bloom, the simple answer is that a usually a hydrangea flowers from mid-spring through the late summer or early fall.
Hydrangeas need more water than most garden plants and will begin to wilt quickly without it. To ensure that Hydrangeas thrive, water deeply two to three times a week in the summer. Be sure to water in the morning or evening so that water does not evaporate as quickly as it would during the heat of the day.