My first thought regarding fertilizing my potted plants now in trays on the drip system was to drop some granular fertilizer in the trays. But then I found these in the greenhouse:
So, I dropped one of these in each tray and I’ll drop a bit of fertilizer in each tray, too, before I water again–probably tomorrow. We’re expecting 88 degrees tomorrow, 91 on Friday and 93 on Saturday! So, it will be a good time to test the system!