The weather has finally broken and Mother’s Day is behind us. I don’t even want to speculate on how many plants and flowers were purchased in the last week around the country, but chances are good if you are a mother, or have one, you bought or received some recently.
A goodly number of these were in already-planted hanging baskets or planters, or are destined to be. Plants in a container have different needs than those in the ground. In the ground, roots can reach deeply for water, and access nutrients being broken down by microbes in the soil. In a pot, where roots are contained and the soil is usually a peat and bark based soil-less mix, it is a whole another story.
To best keep baskets and containers looking their best for the rest of the summer you will need a few things- 1. Water. 2. Fertilizer 3. Clippers or a sharp fingernail.
Water. Some people advocate those water holding crystals. I am not one of those people. If you are, don’t hold it against me. I think it is a lot easier to add water than to take it away in a rainy year. Put your finger in the soil and measure the dampness. If it feels wet and the plants don’t look wilted, leave it. If the soil is wet and the plants look wilted, DEFINITELY leave it. In the hottest part of the day, often plants will wilt slightly to prevent water loss and adding more does not help. Lift the basket just after you water it, and lift it again later.It should feel much lighter before you water again. You may only need to water every few days this time of year and daily as the plants get larger and the temperature gets hotter. Fertilizer. Most potting soil does not contain the nutrients plants need. These nutrients must be added back in either in the form of a time release or liquid feed for the plants to grow, blossom and perform well. Time release is just what it sounds like. The prills release a little bit over time. The fertilizer is temperature and moisture dependent however and releases faster at warmer temperatures. In most greenhouses, plants are fertilized with liquid feed at low levels every watering. You can either do that or give them a burst of blue water weekly to feed them. Some plants need extra minor nutrients like iron. Specifically petunias, calibrachoas and some of the other newer annuals benefit from a fertilizer containing iron. Clippers. Even if plants say they don’t require deadheading, they do. Spent flowers look messy and can be a harbor for disease spores like botrytis or gray mold. Also many baskets will require a haircut in mid summer. Sweet potato vines that got out of balance with the rest of the plants or verbena that starts to looks straggly benefit greatly from a trim. This will help the plant to bush out closer to the base and produce more flowers. Don’t be afraid of the clippers.
All those beautiful flowers purchased last weekend can look beautiful for the rest of the summer. Just give them those three things and they will perform well for you.