Self-watering pots, those with a reservoir area at the base of the pot to hold water for the roots, were not high on my list in regard to usefulness. I had tried them at home on my deck outside and I found that I didn’t like them for several reasons, such as, they tend to get overwatered when it rains and stay in a flooded state (unless you use the drain plug to release the overload of water), they don’t allow air to circulate well when waterlogged, and things like that. In fact, several years ago, I actually wrote a post about how I just didn’t like self-watering pots. I felt they were not good for plants! See that prior post below:
Boy, did I change my mind when I experienced using self-watering pots on a high-rise balcony. On the high-rise balcony, which I tended to for five years for clients’ plants in various pots and some self-watering pots, the environment is so different, I guess you could say, the environment has big weather extremes. And because one of those extremes is intense heat and strong sun, the self-watering pots (they were actually long planter boxes) did not stay flooded after a rain fall for long. The sun and heat dried them out much faster than self-watering pots I used at my home at ground level or on my deck.
A big environmental or climate consideration on a high-rise balcony for the plants was the extreme heat and full-on sun (as I refer to it – sun that is full on and intense). On some days, in the middle of fall, or even winter, it was like being on the beach up there on a balcony so high up if the sun was out. On hot summer days, I would have to make sure I worked on the balcony during the period of day when the sun passed by and there was shade from the buildings so I wouldn’t roast, but that was not often doable. Let’s just say, it gets very hot at times, almost unbearable, so plants which tolerate drought and heat were critical as well. To clarify, this was 38 floors up on the top of a building in a city exposed to all elements from sun, wind, etc.
Because of the environmental extremes such as sun (and wind), trying to keep the soil moist for the plants was more of a job for my clients. They would have to carry water out from inside their penthouse. By hand, with buckets! There was no outside water source, so my big fear was will they water enough? And they did fortunately. Otherwise, the plants would be toast from the extreme sun and heat.
However, with self-watering pots, some of that was solved. My clients actually had two long planters that were self-watering pots before I came onto the scene. When they pointed them out to me, I didn’t say much because I always felt those planters were problematic (as noted above in my prior post from many years ago), and I believed in watering plants in pots yourself. But I was the fool in this case, because I learned quickly, those self-watering planters were winners on a high-rise. So, for those who may be doing some urban gardening, take a look at self-watering pots. They may be very helpful to use if you have plants that require moisture and also if you have intense sun (and wind) on your open balcony up high.
Let me explain why. If the rain fall was abundant, the fact that the sun was so strong and hot after at times, the soil would dry out. The water would not stay in there and flood the planters, like they did at my home after a rain fall. It would be the same exact weather at my house and theirs but due to being up so high, the planter would not stay waterlogged. Waterlogged soil will rot the roots or kill them. It was working out, especially for herbs. Herbs can take dry soils usually, but they do need moisture at times. I started to fall in love with their long self-watering planters.
I learned lots of lessons by working on a high-rise thru experience. I also have knowledge on plants and which were tolerant of conditions, drought tolerant, loved heat and full sun, but I still had lots to learn and plants to test out. In the case of self-watering pots, I discovered that they rock on a high-rise balcony.
The self-watering planters did need to be stored for the winter, however, which I offered as part of my services. I would wash them well, store them and return them in the spring with fresh soil and fertilizer. It was working out and they still have those planters today – those were a very good idea, and an excellent investment.
Pots and planters have special considerations on a high-rise which is another thing I will write about, and I had to find solutions. I’m kind of an out-of-the box thinker – AT TIMES … so I got really creative when during the first year there, which I will write more about later. Weight for example is a big factor. Again, it is not like pots near the ground, there were weather considerations all the time.
Plants that I felt did very well in their self-watering long planters were herbs. I did try smaller compact type of patio cherry tomato plants one year, but they kind of fell over from the winds, so that did not work where the long self-watering planters were positioned near the railing. However, herbs did very well in these. Some herbs in general can take dry soils – herbs like rosemary, for example. Later, I ended up acquiring some tabletop pots which were also self-watering and started to use them with succulents on their high rise as well. Those worked out well also. Succulents do not like soggy soils, so when it rained so much that it flooded the pots, it was fine because the sun and heat would dry them out fairly quickly. Or you can drain them if need be. It was just working out so much better than I would have thought.
A couple things I did was I added some small pea gravel in the base where the reservoir holds the water to weigh down the planters. As noted above, due to extreme winds on a high-rise, I was concerned the planter was not heavy enough. I also used standard potting mix with slow-release fertilizer. And sometimes, I top-dressed the top of the soil with either pea gravel, mulch, or moss, however, it was not really needed but I liked that “finished off” look to add some style to planters.
Here are some photos. I know I have more, but it takes a while to locate them. When I find them, I will add to the next post. I rather enjoyed taking them the planters to my greenhouse to clean for the winter and replant in the greenhouse to deliver in each spring. I felt they were kind of Zen. The herbs would grow three times the size at their balcony – I know I have photos of that but will have to share them when located! It always amazed me how much the plants grew when I would return for a fall change out. Balconies are wonderful places to have a full blow herb garden if you have enough sun, which this place did.
Thank you for visiting,
Cathy Testa
Container Crazy CT
Blogger in East Windsor, CT
One more photo below!