Didnt know this - Growing peppers. Peppers hate nitrogen/commercial fertilizer. Wait until plants flower before fertilizing. Then spray leaves with 1 tsp of Epsom salt to 1qt of water (peppers need Magnesium to set fruit). Peppers also enjoy small amounts of potassium (wood ashes).
Growing strawberries in a tower keeps them off the ground. Love this idea, have done something similar in the past and had so many more strawberries, insects didn't get to them. I want to try this tower. I thought I'd plant Strawberries from the upside down tomato planters this yeas to keep the sluggs out of them. But I think I'll order some of these climbing ones as well.