Overwintering Alocasia (al-oh-KAY-see-uh) plants, dug up from a large cement planter in my yard yesterday 10/11/22.
Since this plant is not hardy in my Connecticut planting zone (6b), they must either be dug up and stored (tubers) in a cool, dry place. Alternative options, if the plants are small enough, is overwintering them as houseplants in small pots where you have a sunny room. Or just moving the pots with the plant in tact into an unheated basement and letting them go dormant, but check to add moisture to the pot’s soil from time to time, and check for any insects on the foliage if moved in the pot. In this case, I dug up the plants, removed the foliage, and air dried the tubers yesterday outdoors.
The Planter – Cement
Because yesterday was sunny and warm, I wanted to get to the elephant’s ears in this planter. I was already tired from being on my feet all day, so I rushed getting these out. Luckily for me, the soil is super soft in this big cement planter due to worms and just great healthy soil. Rather than cut all the foliage off first, like I typically do, I dug around the tuber areas in the soil to break free some roots and just pulled them out one by one from the plant stems.
The soil and exposure
The soil in this planter stays relatively moist and receives the east morning sun, so it primarily gets partial sun or dappled sun, it doesn’t get too hot in this area. I do not fertilize – literally – I do not in this cement planter. Over the years, I’ve added recycled soil (from other pots), maybe some compost, but not often, and it is possible some wood ash from the woodstove in our basement, that is used only occasionally, was tossed in there by my husband, but I asked him not to do that after a while (wood ash changes the pH of soils). It is apparent when I dig in the soil, it has worm castings and the soil is very soft and easy to dig into. This is why I was able to pull out the tubers with the plant on the top rather easily after I broke the roots around the base with a trowel. I didn’t even use a shovel.
I do, however, water this planter by using a garden hose from above and showering it every time I was out there watering my other patio pots above on my deck. We had a very dry season this summer here in Connecticut so I’m sure the tropical plants in this cement planter enjoyed the moisture I gave them. These tropical like plants like moist soils, part shade or some full sun. After getting them out, I laid them on the ground and got my machete, which I finally found where I had stored it!
Chop off the foliage, then lay in the sun
It was super easy to chop off the foliage and stems with my machete. One whack and it was done! Then I put them in a laundry basket to sit in the sun for the rest of the afternoon, later, I moved the laundry basket to my basement. It will sit there drying a while before I move them to bins or paper bags for the winter. Some references will say to wait until the foliage dies back or wait till the foliage is hit by frost to dig and store the tubers, however, I like to work on nice days and yesterday was it – sunny and warm. I store mine in the basement, in a corner by the door, which is an unheated basement but it does not go below freezing in winters. We have a woodstove at the other end of the basement, but it is only used on stormy winter days when we feel like it. We do not use the woodstove to heat the house, only to warm it up sometimes. This means those tubers in the corner stay cold, but they never freeze there. It must be cold, but not freezing, and not too warm either. If warm, they may get soggy or start growing.
Notice my logo on the left side of this photo above; do you see the brown original tuber? The plant this season grew from the side of this tuber (a side shoot) which is attached on the right. Sometimes there are smaller side shoots which you may pull apart to create separate plants and replant those side shoots. Also the green parts above the brownish tuber is this year’s plant and I cut it about 4-5″ above the brown tuber in most cases when I remove them. I usually leave the green plant (like a stump or root base) on there but I am not absolutely sure that is required, because when I received the tubers, there was just the brown dry tuber to plant.
It probably took me only a half-hour to get those elephant’s ears (in this case, Alocasia macrorrhiza, known as giant elephant’s ear or giant taro) out of the cement planter. I was lucky I think it was easy. I know rain is coming tonight and some parts of Connecticut got hit by a quick light frost already, but no hard frost here yet in East Windsor, CT. When it is a true frost, all the foliage will blacken and flops over. Next is to get to those tall Canna lily plants on the ends of this planter dug out and store the rhizomes or the whole root base.
Note: A. macrorrhiza is hardy in zones 8-10 from what I’ve read, but here in Connecticut (zone 6b for me), they are not hardy (will not survive in the ground over the winter months). Also, when I dug these out – there was no rot on any of the tubers, which is good news. Sometimes, if I wait too long to dig these out, there may be rot spots on the tubers because of cold, wet soils later in October. This is another reason why I like digging them out now. I don’t want any soft rotten spots on the tubers, rot only leads to storage problems as the rot may continue on the tuber, which is what you don’t want.
Sit to dry out a bit more before storing
Because these plants get huge and are gorgeous, I had to take the time to save them. I will let those tubers sit in a bin, spaced out for air, probably for another five days before I store them. I have always typically stored them in peat in bins with air holes in the lids, but last year, as noted on prior posts, they rotted a little. I am going to try storing them in paper bags in cardboard boxes this year with air holes. Plastic bins can trap moisture and for some reason, it just seemed they were too wet last year (maybe I was rushing too much last year, and stored them too wet). I have found when my rhizomes for Canna Lily were too dry stored, they didn’t make it. I have always balanced a bit of moisture from the peat and air, but I believe the Alocasias prefer more on the dry side. Everyone has different techniques for storing from what I’ve seen and read over the years.
Prior was making pumpkins
Prior to doing all of this quickly yesterday afternoon, I made a few more orders of my centerpiece succulent topped pumpkins. They were so fun to make and took me a few hours – and my feet give me a hard time, now that I’m getting a little older, standing for hours can be rough. I even put foam on the floor – below my feet, but I felt it later. I tend to make these centerpiece arrangements standing up, and anyhow, these are what I made for some requests. It was a perfect day to do them – sunny in the greenhouse. It’s that time of year when I’m making pumpkin centerpieces and still putting away plants and supplies.
If interested in a custom pumpkin, now is the time to order since it is pumpkin season. They last for months!
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Connecticut Zone 6b
Container Gardener and Plant Enthusiast
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Stay tuned for more information on holiday creations for later in November!
Date of this post: 10/13/2022