PLANT TALK 2017-9
KEVIN: To maintain really nice flowering baskets throughout the season, you want to make sure you use some fertilizer from time to time.
KEVIN: When we do continuous watering, which you have to do on baskets to keep them hydrated, nitrogen is immediately leeched out of that soil. So any type of powder – and Miracle-Gro is one of the most common – I usually add just a teaspoon or so in a watering can. And about every third watering, that’s when I’ll add some.
KEVIN: So when I fertilize I usually like to make sure the planter is already wet, and not completely dry. If it’s really, really dry and you fertilize, you could cause some burning on those roots. So like I say, it’s usually my second step after I’m done watering.
KEVIN: The bloom-booster products are also a great alternative, they’re very high in the phosphorous. That helps the blooming and the rooting.
KEVIN: This is also the time of year you want to prune your lilacs if you want to get bloom every year. Wait until they’re completely done flowering, and then go ahead and you can shear off usually about six to eight inches on the plant. After that you’ll get new growth, the leaf growth, and you’ll start setting the flower bud for the next year.
KEVIN: Now in a lot of our smaller spiraeas, they bloom on this year’s growth, or new wood. If you shear those when they’re done, you’ll actually get a repeat bloom in September. Thanks for watching Plant Talk, we’ll see you again next time.