Tropicals & Tender Perennials: Newbie to Begonias, 1 by hcmcdole

hcmcdole wrote:
Most recommendations I've seen are twofold: slow release fertilizer and/or water soluble at 1/2 the recommended rate once weekly or every time you water. Kinda loose rules but this eliminates burning and downright killing them (I did that with garden fertilizer). Some growers (FL in particular) recommend Dynamite slow release over Osmocote due to total breakdown of the Osmocote capsules due to high heat. I try to fertilize mine weekly with a hose end sprayer using MG all purpose fertilizer. If I was watering indoors I'd cut the rate down to 1 TSP per 3 gallons but outdoors while they are actively growing I am currently using 1 TBSP per gallon on the hose end sprayer. I'm trying to get some speedy growth before fall arrives.