Planting: You can plant container grown trees during April with good results.
Transplanting: Fall and winter months are when you should transplant trees.
Fertilizing: You can still apply fertilizer during this month.
Pest Control: To prevent pecan trees from the gall-forming insects it is necessary to spray the trees this month since when you see the galls later in the summer it is too late to do anything.
Pruning: Prune spring-flowering trees this month. Prune off any damage that may have occurred to trees. It is best to wait until new growth begins so you can clearly see what is dead and what is alive. Study all your trees for problems that can be corrected by pruning (low branches, dead or rotten branches, branches blocking views, paths)
Water: Although the weather can still be mild it may be necessary to water if we have not received enough rain.
Planting: Purchasing and planting container rose bushes now allows you to pick out the color, shape, fragrance and size of the flowers you want since most will be blooming.
Transplanting: April is not the best month for transplanting roses.
Fertilizing: If you didn't fertilize your roses last month do so now.
Pest Control: Do not wait for blackspot to occur before you start a treatment program. Be on the lookout for powdery mildew which appears as a white powdery coating on flower buds, new growth, and leaves. Aphids may be found at this time of year also.
Pruning: Roses are in bloom now and should not be cut back. Deadhead faded flowers by cutting the stems back to the first or second five-leaflet leaf.
Watering: Supplemental water is usually needed this month. The plants need 1 to 1 ½ inches of water weekly.
Planting: This month begins the prime planting season for warm-season grasses which runs until August or September.
Fertilizing: Fertilizer helps produce a lush, vigorous, dark green lawn. Although all lawns will benefit from an application of fertilizer those that have been damaged or are in low vigor certainly should be fertilized.
Pest Control: Apply broadleaf weedkillers now and next month. Read the label since not all are safe for all types of grass. Many products combine several weed control aids in one formulation making them effective in controlling a wide variety of weeds.
Mowing: Make sure your blades are sharp and mow as needed.
Watering: Watch the weather and if it is dry water thoroughly and deeply as needed.
Planting: April is a good month to plant container grown shrubs. It is also the last month that you should plant balled-and-burlapped shrubs. Little time is left for them to make root growth prior to the arrival of hot weather.
Transplanting: Only transplant shrubs when absolutely necessary. If you must transplant make sure to dig as many roots as you can and keep the plants well watered.
Fertilizing: Fertilize your shrubs now if you didn't do so last month.
Pest Control: Watch for aphids on new growth and flower buds. Look for azalea lacebugs – tiny white spots on the upper surface of the leaves and dar brown specks on the back. Caterpillars will chew holes in new foliage. Powdery mildew may occur if the weather is warm and humid – look for a fine, white powdery coating on the foliage.
Pruning: Prune spring-flowering shrubs anytime after they finish blooming.
Watering: Newly planted shrubs need ½ to 1 inch of rain every 5 – 7 days. If Mother Nature doesn't supply this amount of rain then it is up to you to do supplemental watering.
Planting: You can plant perennials from seed in containers and transplant them into the garden in the fall or early next spring. This month is a great time to plant perennials.
Transplanting: You can still transplant perennials during this month.
Fertilizing: Fertilize perennials plantings if you have not done so
Pest Control: Watch out for caterpillars, beetles and aphids. Look for powdery mildew - a white, powdery coating on the leaves of perennials – common disease. Gray mold may attack flowers and foliage during cool, wet weather, causing tissue to brown and rot with a gray fuzzy growth on it.
Pruning: Deadhead regularly to keep plants attractive and in some cases encourage more flowers.
Watering: Deep watering is especially important this time of year if sufficient rain does not fall.
Planting: Plant summer-flowering bulbs this month.
Watering: Keep newly planted summer-flowering bulbs watered as they grow and establish their root systems.
Pest Control: Caterpillars may be a problem, especially the highly destructive canna leaf roller – treat with the appropriate aid as needed
Planting: April can still have some cool weather but most people in East Texas feel the need to plant annuals now – especially after tax day.
Fertilizing: Use soluble fertilizer on annuals planted in containers and in your flower beds.
Pest Control: Watch for holes in leaves caused by hungry caterpillars – treat with a control aid.
Watering: Continue to water beds and pots as needed.