I am in RI- zone 6b and the cold snap in February killed the buds that were forming. It had been a fairly warm winter until then. I got about 5 flowers on 3 plants. I am planning to rejuvenate this azalea in the next few weeks. It is about 8 yrs old and too big for the spot it is in. I enjoy the blooms in the spring and later in the summer. The second bloom is quite a bit less than the initial bloom.

Have you had your soil tested? Encore azaleas are a little picky. They like their soil more acid 4.5 to 6. After it’s tested, you might amend the soil as well as add the recommended fertilizer, if it’s even needed. You can get a soil test thru your county agents’s office as well as soil recommendations. Also, if they are too close to trees, the trees might be absorbing the nutrients needed to bloom.

Encores need direct sunlight to bloom 4 to 6 hours and appreciate some shade after that. They like moderate sunlight.

Your county agent could be of great help. Your plants are very green and pretty.

@Coco Wilkinson I did and pH was 6.5. I added more soil acidifier but did not help. I believe

azaleas are not ideal for cold climates. They get some damage each winter. They get over 6 hours of sun everyday. I gave up on them but at least, they provide a nice foliage.

Azaleas are fine in moderately cold climates, so long as you plant hardy ones. I don't believe the Encores are, but I haven't been personally involved with azaleas for a while.

PJM azaleas, for example, are hardy, and I know there are others.

What variety of Encore did you plant? How much sun do they get? Do you winter protect? Exactly where are you located? When was your last and first fertilizer application done?

From what i read they are best in zone 7- 10 but need at least 6 hrs of sunlight to be okay in Zone 6 a so check the amount of actual sun it gets .

Zone 6a is the minimum Encore azaleas will tolerate and not all varieties are equally hardy. A hard winter freeze or late spring cold snap could certainly impact flower production. As will a failure to water adequately in late summer or early fall when latent flower buds are set. And take the "reblooming" concept with a grain of salt :-) The primary bloom season is spring and IME, you will get only mild flushes of rebloom periodically during summer or fall. And that is under the best of circumstances, including a proper soil pH and sufficient sunlight.

Just a note of clarification -- while rhododendrons and azaleas are closely related, there are differences. The PJM group are rhodies, not azaleas, and one of a handful of broadleaved evergreen shrubs hardy in zone 5.

@luis_pr @Patricia Colwell Consulting @gardengal48 (PNW Z8/9)

I have one Encore Azalea 2xAutumn Lily, 2x Autumn Twist and 1xAutumn Majesty. They are listed under zone 6 which is my zone (Toledo, OH). Autumn Majesty did the best among them and produced some blooms in spring and summer. They receive 8 hours of sun in spring and summer. Eventually, I discovered that Encore Azaleas are not for zone 6. They survive winter but buds get killed. "Reblooming " is a just scam advertisement.

I hear you. Reblooming will depend on the variety‘s winter hardiness and on the various/different local weather conditions. In my mild z8 winters, Amethyst blooms almost nonstop (still blooming right now). But in my dismal winters (-5F to +10F temperatures), it may lose most of the top growth but it starts blooming around October. Go to their contact Us page and let them know: https://encoreazalea.com/contact/