What is the best fertilizer to use to rejuvenate a Rhododendron bush in New England?

Answer 1

Quite simply ! eggshells

Answer 2

If leaves lack color, give plant a small feed of ammonium sulphate in May. Foliage may be fed with liquid fish fertilizer, but this is not enough to set buds for the following year. Use a good rhododendron fertilizer with trace elements, and do not feed after the end of June.

Before blooming, use a 10-8-6 granular rhododendron fertilizer or complete slow-release fertilizer.

Answer 3

A Rhododendron bush in our garden in England looked very unhappy for the first two years after planting, I moved it into a
position where there was more sun, I occasionally feed it with a bucket of white vinegar and water.
This year we have seen a crop of beautifull blooms and it has also started to grow taller

Answer 4

What is it suffering from? They need partial shade, minimal water, and acidic soil.

I have ones that I bought as a batch of seedlings from a nursery and they have grown into large bushes because I happened to have a nice shady location for them and most New England soil is acidic. For water after their first year I just let it rain on them. They have not needed rejuvenation nor fertilizer to bloom profusely every year. There are fertilizers that are marked as being "for acid-loving plants." Try those. If you want something more organic then mulch from oak leaves and pine needles will help them.

Answer 5

try 10 10 10 or use a product from that company

Answer 6

Hollytone
Mir-Acid
any one that says it's for acid loving plants.

Answer 7

lots of mulch. they just thrive on mulch. mix it with compost, blood and bone meal, and pile it on, mix it down.