Common Gardening Questions

 

•  What type of fertilizer is best for my lawn, and when should I fertilize?

We suggest that you test your soil every two to three years to monitor the levels of the three nutrients in fertilizer. These nutrients are “Nitrogen” (the first number), “Phosphorus” (the middle number), and “Potassium” (The last number).

* Nitrogen – The most important nutrient, nitrogen provides “green up,” or growth, in your lawn.
* Phosphorus – Phosphorus is responsible for root, flower, and fruit development.
* Potassium – This nutrient builds up summer and winter hardiness.

For lawns in most parts of Texas, a ratio of 3-1-2 (e.g., 15-5-10) on the label works best, and a slow-release fertilizer is a must. The best time to fertilize is April, July, and October, and three applications a year is definitely sufficient.

• How much and how often should I water my lawn?

Most of us in Houston have St. Augustine grass. This type of grass requires more water than most. Take note that frequent shallow watering is harmful to a lawn. Shallow watering forces the roots to stay on the surface and exposes the roots to the harsh conditions of Houston weather. If sufficient water is provided each time, a lawn will require water less frequently. Allowing the water to reach a 4 to 6 inch depth is ideal. Try to apply 1 inch of water to your lawn per week. If weather conditions become extreme, you should increase that amount. Water just before sunrise, because watering at night may promote conditions for disease.

• When should I prune and fertilize my azaleas?

Prune azaleas after they bloom. Try to prune plants selectively, and don’t attack them with hedgers! Fertilize after the blooming cycle with high-nitrogen fertilizer to promote thick regrowth in the spring. Later in spring, you should repeat this application. When early fall comes along, feed your azaleas with Azalea/Camellia/Gardenia fertilizer to promote flower bud set before cold weather arrives. Make sure to water all fertilized areas immediately after application. Provide a 2-3 inch layer of mulch year-round for all of your azaleas… they will love it!