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Hydrangea varieties were suitable for zones 3-9.

The mature size differs reckoning on the variability. Some areas small as 3-feet tall and wide, while others can reach 15-feet tall and 12-feet wide.

Most hydrangea plants bloom best partly shade, but some will tolerate full shade or full sun. the number of sun they will handle depends on your location—in areas further north they’ll take more sun, while further south they like just some hours of morning sunlight

Hydrangeas usually bloom in summer, with some blooming earlier within the season and a few later (and if you’re lucky, possibly even into fall).

Types of hydrangeas:

Most bloom in reminder blue, purple, or pink, but there are white, green, and even some red varieties. Many will open one color and so change colors as they age. Additionally, some hydrangea flower colors (mainly on big leaf or mountain varieties) are manipulated to be more blue, pink, or purple looking on soil composition and soil pH levels. Learn more about the process to change the color of hydrangeas.

There are six main types:

  1. Bigleaf or French hydrangea (H. macrophylla)
  2. Oakleaf hydrangea (H. quercifolia)
  3. Climbing hydrangea (H. petiolaris)
  4. Panicle hydrangea (H. paniculata)
  5. Smooth hydrangea (H. arborescens)
  6. Mountain hydrangea (H. Serrata)

Additionally, there’s a good form of characteristics to settle on from standard-size hydrangea shrubs, smaller dwarf varieties, or taller tree-like forms. you’ll be able to also choose from four distinct flower shapes: lace cap, panicle, mophead, or snowball. There also are types that bloom on old wood, types that bloom on new wood, and kinds that bloom on both, often mentioned as “reblooming” or “remontant” types.

Compare the sizes, light needs, and bloom time of the various hydrangea types and determine which of them meet your gardening needs.


Leaves and flower buds are seriously harmful to dogs and cats if eaten. See more Common Poisonous Plants for Dogs and Cats.

How to Plant Hydrangeas


Growing hydrangeas successfully starts with the planting process

When to plant hydrangeas:

Container-purchased plants should be planted in spring or fall. ensure that there’s no threat of frost when planting.

Where to plant hydrangeas:

The best location is one that receives morning sun and afternoon shade. If you reside further north, they’ll tolerate more sun (possibly full sun all day).

Consider the mature size, provides it lots of room to grow.

Choose a section with excellent drainage. Amend the soil with compost if necessary.

Don’t plant beneath a tree—the root competition and lack of sunlight will prevent them from thriving.

Avoid planting in exposed areas where gusty winds could snap stems.

Get your plant off to a healthy start by amending your soil with up to fifteen organic matter and an all-purpose slow-release fertilizer (use half what’s recommended).

Plant slightly more than they were within the nursery container.

The planting hole should be 2 to three times wider than the basis ball to allow the roots much room for expansion.

Gently loosen pot bound roots before planting.

Backfill with the amended soil and water well.

If planting a grouping, space a minimum of 3 feet apart (more, if planting larger varieties).

Planting hydrangeas in pots:

Use a bagged potting mix instead of garden soil.

Mix in an exceedingly slow-release fertilizer.

Leave 1 to 2 inches between the highest of the soil and therefore the rim of the pot for watering.

Make sure the pot has drainage holes and has room for the plant to grow.

Pruning hydrangeas:

Many don’t need major pruning; most need simply enough to stay them tidy by removing old flowers and dead stems, improve the shrub’s structure or shape, or to open it up to let sun and air in.

How and when to prune depends on the kind you’re growing. You’ll have to determine whether your plant blooms on old wood, new wood, or both before proceeding to prune.

Learn more here: a way to Prune Hydrangeas.


All like well-drained soil that’s rich in organic matter. Serrata; other varieties can tolerate a variety of soil alkalinity.

Learn more here: Changing Hydrangea Color.


Mulch with organic material annually or add a slow-release 10-10-10 fertilizer with thorough watering before and after application.

Watering hydrangeas:

They prefer to be kept moist, but not wet—and don’t allow them to dry out. Container plants might have daily watering. Add mulch to assist keep the soil moist.

Diseases and pests:

Generally not suffering from a serious disease or insect problems, however, many species is also at risk of some bud blight, bacterial wilt, leaf spot, or mildew. Keep an eye fixed out for aphids and mites, and treat PRN. Japanese beetles may be controversial on oak leaf varieties.

Why is my hydrangea not blooming?

This is more common with types that bloom on old wood (last year’s growth). Three common reasons are:

You may have pruned at the incorrect time and inadvertently removed the stems that might have produced flowers.

The flower buds may are damaged by a tough frost—cover plants during cold snaps if this could be a problem.

It may well be caused by an excessive amount of shade or over-fertilizing.

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