What is the besr fertlizer to put on roses to get really large blooms?

I have raised roses for years but have never been happy with the size of the blooms...

What is the besr fertlizer to put on roses to get really large blooms?
we use miracle grow for flowers works good for us . good luck.
Reply:Feed roses often and lightly. The big 3 nutrients are: Nitrogen which promotes healthy green growth; Phosphorous, which is vital to strong root growth and flower production; and Potassium, which is needed for vigorous growth.





For Hybrid Teas, Grandifloras, Floribundas, Polyanthas, and Climbers: Apply 1/2 cup of 10-20-20 or 10-20-10 per bush, three times per year. First application in late March or early April; second application in May; third application in late June or early July. Alternatively, you can add 1/4 cup every two weeks





For Miniatures: First application in early April using 1 tablespoon of 10-20-20 or 10-20-10 scattered around each plant and scratched in lightly. For the second application in early June use a soluble 20-20-20 fertilizer such as Rapid-Gro, mixed according to the directions on the package; use 1 cup of this solution around the base of each plant. The third application early in July is the same as the second. Alternatively, you can use 1/2 the amounts divided over 6 feedings.





Old Garden Roses and Shrub Roses: Most of these don't need much fertilizer. Once in the early spring with a general all purpose 20-20-20 will hold them for the year. For repeat blooming types, a second feeding can be applied after the spring flush of bloom is done.





The Macronutrients





The secondary macronutrients are sulphur, calcium and magnesium. Use of a high quality rose fertilizer will ensure that these macronutrients are made available to the roses.





Of these secondary macronutrients, magnesium is of substantial interest to the rose gardener. Magnesium sulfate, provided in the form of Epsom salts, is a time-honored secret for intensifying flower color, increasing flower production, and flushing harmful salts through the soil. Add epsom salts at the rate of 1/2 cup per plant per month.





The Micronutrients





The seven micronutrients are iron, manganese, zinc, copper, molybdenum, chloride, and boron. Ensuring that your soil is of the proper pH for your roses will ensure that plants can access micronutrients in the soil. Especially in areas where soil is alkaline, you may need to correct the pH and/or foliar feed with a fertilizer that contains chelated micronutrients.





Both macro and micronutrients are plentiful in compost and composted manures and leaf mold. Topdressing annually with a good layer of compost should be sufficient for most established roses.





American Rose Society's "alfalfa tea" for roses!





Alfalfa tea is a great fall potion that doesn't interfere with normal fall processes. Alfalfa tea releases a growth hormone that makes everything work better.





Just add 10 to 12 cups of alfalfa meal or pellets to a 32-gallon plastic garbage can (with a lid)


add water, stir and steep for four or five days, stirring occasionally.


You may also "fortify" with 2 cups of Epsom salts, 1/2 cup of Sequestrene® (chelated iron, now called Sprint 330) or your favorite trace element elixir.


The tea will start to smell in about three days. Keep the lid ON.


Use about a gallon of mix on large rose bushes, 1/3 that much on mini's. And keep the water going.


When you get to the bottom of the barrel, add water to fill it up again! One load of meal or pellets will brew up two barrels full, but add more fortifiers for the second barrel.
Reply:It may sound obvious, but a fertilizer specifically for roses works the best for me. I also put sulphate of potash in the rose beds every few months to increase bloom vigour. Also, have you got lots and lots of little blooms? If so, you might want to thin the buds out a bit and have a few beautiful big blooms over dozens of little ones.
Reply:use bone meal. manure and bone meal make huge blooms and stronger, larger plants. but it also depends on the climate of where you live so if its dry, more manure, wet, more bone meal.
Reply:check with your garden supply center for ammendments specifically for roses. you may want to consider a blend with higher nitrate, phospherous content, also keep an eye on the ph level in your pots or bed. different rose varietys have differing ph requirements. good luck