By no means have I had a chance to go back and look at all of the container projects we planted in late May and June, but I have had a chance to see a few. The season so far has been very friendly to the tropical plants. I am referring to the heat, of course. Any gardener that has been able to keep up with the daunting task of watering their containers properly has been rewarded with an astonishing display of lush growth and lavish flowering. Proper watering is not constant watering. It means watering ahead of that moment when the plants stress from lack of water. A consistent and measured watering hand makes for great looking summer containers.People ask me what my protocol and procedure is for watering all the time. My best advice is to never assume a plant needs water. Assess whether it needs water first. The roots of plants that get too much water will rot, and will not be able to absorb water no matter how much is available. Keeping plants on the slightly moist side encourages root growth. That said, every plant has preferences about what level of moisture they require. Planting containers with plants of a similar inclination makes a watering routine easier. The box pictured above is watered by hand. The boxwood and hosta had substantial root balls before they were planted into the container. Add a bright shade location to the mix, and you have a container that does not require a daily drenching to prosper.
The mandevillea this year are blooming profusely. They love the heat. In Michigan, they thrive in full sun.They also like just the right combination of regular water and good drainage. A mandevillea sporting yellow leaves is either getting too much, or too little water. You will not be able to figure out which until you try more or less water, and see if the trouble stops. This container is mechanically watered via a dedicated container zone on the irrigation system. Figuring out how often to water, and for how many minutes each time is a trial and error process. It is simple to tell by looking at these plants that the amount of water they are getting is just right.
The window boxes pictured above and below also have a mechanical watering system, but I happen to know my client does not rely on it. His irrigation buys him some time, if he is busy and can’t get to the watering immediately. He checks them routinely.The exposure here is easterly, so the boxes are shaded from the sun in the afternoon. All these plants like the heat, and a reliable source of water.
The ability to look after plants does not come standard issue. It takes patience, observation, and experience to figure out what way works for both the gardener and their garden. Fortunately, a lot of ways work. Plants can be incredibly forgiving of mistakes, but over the course of a summer season, their water needs are not negotiable. It doesn’t hurt to site pots and pick plants with some thought to how they will be maintained. I am pleased with how our summer plantings are getting along.
My pots at home are doing fine. Karen, David and Marzela give me a hand with the watering on occasion. I have 43 containers. 20 boxes and pots in the front now have their own automatic watering zone. The two pots by the front door are hand watered – that much I can do. The remaining pots are all watered by hand. They were all soaked on Friday. Today’s a day I will need to check to see if they need water, or restraint.