Fall is the best season to plant hydrangeas, followed by early spring. The idea is to give the shrub plenty of time to establish a healthy root system before blooming. The best time of day to plant is early morning or late afternoon.
Keep Species In Mind
Paniculata hydrangeas prefer full sun, while climbing and bigleaf hydrangeas prefer partial shade. Hydrangea Paniculata loves full sun and can take 6 hours or more of sun per day. This species is always a beautiful addition to any garden.
Most hydrangeas prefer partial sun with full sun in the morning, followed by some afternoon shade. This is especially true for the Bigleaf hydrangea (H. macrophylla). Some varieties are more tolerant of full sun. Most hydrangeas will thrive in fertile, well-draining soils that receive plenty of moisture.
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.
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.
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.
They don't form a central taproot like rhododendrons and shrubs. Instead, they grow in a loose, spreading mass of fibers often referred to as a root ball. The vast majority of a Hydrangea's roots will stay within the top six inches or so of soil. However, they do tend to spread quite a bit in the horizontal direction.
In Ground: Hydrangea are easy to grow in most any moist but well-drained soil of average fertility.
To loosen the soil, mix dehydrated cow manure, garden compost or peat moss (up to 1/3 concentration) into your pile of topsoil. Make sure the peat moss you get is either baled sphagnum or granular peat.
Put the pot in a spot that is away from any direct sunlight and keep the soil slightly damp. In two to four weeks, a root system should begin to develop. You can transplant the cutting so that it can have the winter to establish a strong root system.
Water your hydrangeas in the morning before the heat of the sun is strong enough to quickly evaporate soil moisture. Try to avoid watering at night, which can encourage mold and mildew as the moisture sits through the cool night. Water your hydrangeas through the growing season as well as in late fall.
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.
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.
Hydrangeas do not require strict reqular pruning; simply keep them healthy by removing dead wood and they will grow and flower well.
With proper timing and basic propagation techniques, you can grow new hydrangeas from simple stem cuttings. Just follow these steps to multiply your hydrangeas and their breathtaking blooms: Time hydrangea cuttings for optimal results. Gather your tools before you start.
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.
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.
A pH of 7 is neutral, and household vinegar has a pH of around 2.4 (which is quite acidic). The theory is, applying diluted vinegar to the soil will lower the pH enough to change the color of your hydrangea blooms. This strategy will make the soil more acidic, but not for long!
You can use vinegar to lower the pH of your soil, but be aware that in order to achieve blue blooms, you will need both an acidic environment and aluminum ions. The acidic environment will also need to be a sustained over a period of time, which could be hard if rainwater is washing the vinegar away.