Cold Hardy Azaleas Choosing Azaleas For Zone 4 Gardens

Azaleas for Zone 4 The shrubs grow to eight feet tall. If you prefer your azaleas a deep rosy pink, go for “Rosy Lights” azalea. These bushes are also about eight feet tall and wide. “White Lights” is a type of cold hardy azaleas offering white flowers, hardy to -35 degrees Fahrenheit (-37 C.).

Which azalea is the hardiest?
Can azaleas grow in cold weather?
How do you pick a good azalea plant?
Can azaleas withstand freezing temperatures?
Are azaleas poisonous to dogs?
What temperature can azaleas tolerate?
Will azaleas come back after a hard freeze?
How do you protect azaleas from spring frost?
Should I cover my azaleas in winter?
Do azaleas like coffee grounds?
What time of year is best to plant azaleas?
Do azaleas like sun or shade?

Which azalea is the hardiest?

Rhododendron prinophyllum (Roseshell Azalea)

The foliage of elliptic, smooth, blue-green deciduous leaves turns attractive shades of purple in fall. Rich of a strong cinnamon to clove fragrance, this Azalea is exceptionally cold hardy and can withstand temperatures as low as -25ºF (-32ºC).

Can azaleas grow in cold weather?

Winter care for azaleas isn't involved. Just watch the weather report and cover the azalea if temperatures drop below 25 degrees F. (-3 C.), especially if the drop in temperature is sudden or the plant is young. Icy winds and excess sun can damage evergreen azaleas in winter.

How do you pick a good azalea plant?

Select azaleas based on mature height and width, not their size when you buy them. Bloom time. Azaleas are famous for springtime beauty, but they come in early, mid- or late-flowering varieties. Reblooming types flower in spring and again in fall.

Can azaleas withstand freezing temperatures?

Besides damaging leaves and shoots, freezing temperatures can also cause splitting of stems or bark, especially on azaleas. If damage occurs at the base of the plant, it may not survive. ... Any potted plants that survived the first freeze should be moved inside immediately.

Are azaleas poisonous to dogs?

#12 Azalea/Rhododendron

These common flowering shrubs are poisonous plants for dogs and produce serious gastrointestinal issues. They can additionally cause weakness, discoordination, and weak heart rate. Potentially fatal.

What temperature can azaleas tolerate?

Certain rhododendrons and deciduous azaleas can survive temperatures as low as -35°F (-37°C). It is normal for some rhododendrons to exhibit leaf droop and curl at around 32°F (0°C).; the lower the temperature the tighter the curl. Leaf movement occurs rapidly and it is reversible as temperature warms.

Will azaleas come back after a hard freeze?

Some gardeners cover azaleas, especially when in bloom, during a hard freeze. The plants will survive covered or not, but frost will ruin any flowers. May suffer damage to tops during a freeze but will return from the roots in spring.

How do you protect azaleas from spring frost?

The University of California recommends watering plants two to three days ahead of a hard freeze or when numerous days of sub-freezing temperatures are expected. This helps the soil to retain and release heat to plant roots, which is even more important to protect young and newly-planted azaleas.

Should I cover my azaleas in winter?

Cover or Drape:

Drape material to protect plants from severe weather. When heavy snowfall or icing is predicted, provide additional protection by driving stakes into the ground around the plants and draping material over the stakes. Choose burlap or any cloth material so the azalea receives air flow.

Do azaleas like coffee grounds?

Coffee grounds are highly acidic, they note, so they should be reserved for acid-loving plants like azaleas and blueberries. And if your soil is already high in nitrogen, the extra boost from coffee grounds could stunt the growth of fruits and flowers.

What time of year is best to plant azaleas?

The best time to plant azaleas is in spring and fall. Plant them in a sunny spot that gets a good amount of afternoon shade. When planting azaleas, fill the hole with a 50/50 blend of existing soil and Miracle-Gro® Garden Soil for Trees & Shrubs.

Do azaleas like sun or shade?

Azaleas do well in full sun or part shade (about four hours of sun). Planted in full sun, azaleas will be more compact and floriferous. When planted in part shade, they will stretch toward the sunlight and form a more graceful habit; flowers will not be as plentiful but will last longer.