Dannette Hunnel
August is such a hot month. Beyond cacti, many wonder what could possibly thrive in this intense heat. If you are aching to do some flower gardening, there are a few things you can still work with during this time of year.
Vincas, of course, are the standard flower of the Phoenix Valley. Others that can live and grow during this time are zinnias, blue salvia, sunflowers, celosia, lisianthus, and pentas. There are also a few flowering ground covers such as portulaca and purslane, and pretty, dark-colored vines such as the potato vine and the trumpet vine. All will take full sun.
All require watering in the early morning three to four times a week when the topsoil is dry. And when watering, water the ground, not the top of the plant. Overwatering during August usually is not an issue and won’t create root rot, as long as it is not standing water. Of course, our lantana, bottle brush, bougainvillea, and some oleanders will still flower throughout the summer. They do not require as much water as other flowering plants, as they depend on the humidity and rains of monsoon season. While not all of these flowers will last a long time, it is nice to know that a couple of them make fine cut flowers, so you can bring your garden indoors (lisianthus, zinnias, sunflowers, celosia, and pentas).
Something to consider is that newly planted flowers with frequent waterings are going to attract thirsty bugs and other critters seeking moisture and shade, so be on the lookout for pests on or under your plants.
Lastly, if you are going to be gardening in this extreme heat, remember to take care of yourself, too. Sunblock and hats should be mandatory. Consume plenty of water and electrolytes for hydration. Limit your time outside; try to be indoors no later than 9 or 10 a.m. Always let someone know that you are going to be outside working in your garden so they can check on you.