- Our Garden Center
- Expert Advice
- Farmer’s Market
- About Us
It’s May—Finally! All danger of frost is past, right? Not exactly.
We did have a surprise frost last year in mid-May!!! Normally, we’re pretty safe in considering ourselves out of the woods now. And I’m proving it by moving my orchids, citrus, and other houseplants outside for the summer. After last year, however, I’m going to move them all onto the shaded patio for the next couple of weeks so I can easily bring them back inside if necessary…
In the 36 years I’ve been with the Great Big Greenhouse, do you know how many customers I’ve seen bring in leaves or pictures of leaves with bleached patches or brown patches on them in late May? It’s sunscald or sunburn caused by putting indoor plants out into the direct sun.
Remember, even the plants in the sunny windows inside have had a ceiling overhead—so they have been getting NO direct overhead sunlight. Putting them out in the overhead sun, well, it’s a bit like going to the beach for a weekend in May—without sunscreen. Even my sun-loving houseplants—like citrus and succulents—will go outside into mostly shade for a few days before I begin to inch them into more sun. My medium light plants will go into the dappled shade under trees and STAY THERE.
So, with all your plants outside for the summer, you can forget about them, right? Well—no!
Watering needs change now that they’re in better light, better air circulation, and fluctuating temperatures. And plants respond to better light by actively growing, so feeding on occasion is a good idea. Just be sure to use the right formulation for your plants.
Most blooming plants, except for orchids, can be fertilized with an African violet food (it is a blossom booster, after all). Orchids, on the other hand, should be fed with 20-20-20 half-strength, half as often as the label says.
Succulents and cacti should be fertilized with half-strength even numbers like 10-10-10. Palms, ficus, ferns, and other plants that are grown for the beauty of their foliage can be fed with regular strength even numbers.
The beginning of the growing season is a good time to repot a plant—if necessary. How do you know if you need to?
If you find a plant is drying out a lot faster than usual, it may be telling you there just isn’t enough soil to hold moisture for the plant. At that point, you can go up ONE size (about an inch) if necessary. If you’re able to get by with one good watering a week, however, you probably don’t need to repot.
Plants that grow sideways—like snake plants—should be repotted when the new shoots are touching the sides of the pot. If they need to be divided, this would also be an ideal time.
Over the winter indoors, some of your higher light indoor trees (like ficus and scheffleras) might have gotten a little lean and leggy so now is a good time to do some pruning and shaping, if necessary. On plants like ficus, scheffleras, tropical hibiscus prune leggy stems to right above a leaf node (a node is where the leaf attaches to the stem). New growth appears from the nodes.
For soft-stemmed plants (like philodendron or ivy) you can pinch them back to just above a node.
There are a few plants that should not be pruned. Norfolk Island Pines do NOT branch, so if you cut them back they will begin growing SIDEWAYS. Orchids should never be pruned except by someone experienced with orchids.
When in doubt, you can always call us or stop by. That’s what we’re here for.