May Gardening Tips
- Use row covers to slow bolting and extend harvests into hot weather. They are also great to keep out destructive chewing bugs!
- Plant corn, summer squash and melons as cool season veggies are harvested. Mix a good compost in with the soil for increased production.
- Control caterpillars on broccoli and cabbage plants by handpicking or use Captain Jack’s Deadbug Brew or Thuricide with Bt (a natural bacterium).
- Keep asparagus harvested for continued production.
- Give vegetable plants a boost by feeding them with an organic fertilizer such as Happy Frog, Tomato and Vegetable Fertilizer.
- Plant all warm season herbs and vegetables now, including basil and tomatoes. Set stakes in to support the tomato plants at the time of planting.
- Fertilize blueberries and raspberries with a good acidic fertilizer to increase harvest. Remember adequate water is essential.
Annuals, Perennials & Bulb Care
- It is time to plant summer annuals at last! Nothing adds color to garden spaces and containers like blooming annuals, and it’s unlikely we will experience a hard frost during the rest of the growing season.
- When planting containers or garden beds, sprinkle some Osmocote slow release fertilizer along with your annuals.
- Start fertilizing summer annuals with Happy Frog Fruit and Flower fertilizer, Dr. Earth Flower Garden Fertilizer for large summer flowers.
- Start pinching back mums and feed with Triple Super Phosphate to promote bushy growth.
- Deadhead early blooming perennials to prevent disease and spread mulch to control weeds.
- Plant seeds of summer annuals like sunflowers and zinnias directly in the ground.
- Complete planting borders and divide overcrowded perennials. To reduce transplant shock use a root stimulator.
- Spray a weed & grass herbicide such as RoundUp on actively growing weeds or grass in your beds and borders. Be sure to target the weed as RoundUP is non-selective.
- Slugs hide under large leaves, create a slug barrier with Natural Guard Crawling Insect Control regularly around your hostas and other perennials, or share a beer with the them. Fill a pie pan with beer and place it in the garden. Slugs are attracted to beer. They crawl in, drink and drown!
- Use Captain Jack’s Deadbug Brew for aphids and/or caterpillars on new growth of perennials and annuals or Systemic Insect Granules.
- Use Bayer All-in-One Rose & Flower Care to control mildew and phlox plant bug on garden phlox.
- Use Rabbit Scram to deter rabbits from nibbling on young perennials and annuals.
- Plant summer bulbs such as dahlias, cannas, elephant ears and hybrid lilies now that the soil has warmed up.
- Spread mulch to keep weeds under control and moisture in. After spreading mulch apply Preen to keep the weed seeds from germinating (do not use if you are planting seeds).
- Spring blooming bulbs can be moved or divided as the foliage dies. Use Bulb-tone when replanting
- When planting new roses mix organic matter in to help break-down heavy clay soil. Add compost and a good fertilizer into your soil.
- Apply Bayer All-In-One Rose & Flower Care every six weeks for insect control, fungus control and fertilizer.
- If you are not using Bayers All-In-One, fertilize roses every two weeks with Miracle Gro Rose Food.
- To prevent the spread of black-spot, keep rose beds clear of dropped leaves and petals and dead-head spent blooms regularly.
- Roses are thirsty shrubs. They need 5 gallons of water per week to thrive.
Trees and Shrubs
- Use Sevin on trees, shrubs and flowers to kill Japanese Beetles, aphids, spider mites and other insects.
- If not done in March, apply Aluminum Sulfate to blue-blooming hydrangeas.
- It is important to start watering, especially plants grown in full sun and the spring bloomers. Soaker hoses are a great way to distribute the water evenly.
- Use Miracle Gro Azalea, Camellia Rhododendron Plant Food on Azaleas and Rhododendrons when they are finished blooming.
- Forsythia and other spring flowering trees and shrubs (Spirea, Mock Orange, Lilac, Magnolia, Rhododendron, Azalea, etc.) should be pruned immediately after flowering to promote new growth for next year’s flowering.
Tropical Plant Care
- Bring tropical plants outdoors as night temperatures stay above 50. Start them in a shady location and gradually move to brighter light to prevent sunburn. Feed them with a time release fertilizer or a good all purpose fertilizer.
- Apply a good acidic fertilizer to gardenias and citrus plants every 3 to 4 weeks.
- Zoysia lawns may be fertilized now.
- Apply a post-emergent broadleaf weed control to kill weeds and crabgrass in your lawn.
- If you laid a new lawn or seeded lawn, be sure to water, especially if the temperatures rise and we are not getting rain.
- Rain gauges are helpful in monitoring rainfall. Gardens need about 1 inch of water per week through September.
- Fill Hummingbird Feeders with nectar as the hummingbirds return to the area.
- Make sure bird baths are cleaned and filled with fresh water regularly.
- Protect bees by not spraying fruit trees when in bloom.
- The best time of day to use insecticides is in the evening when bees are less active.
- Add vegetable scraps, coffee grounds and eggshells from the kitchen along with spent vegetables from the garden.
- Turn the compost pile regularly and water periodically
to speed up decomposition.
Click on the links below for great gardening tips
Mulching | Growing Pansies | Organizing Seeds | Growing Tomatoes | Lawn Care Tips | Garden Mum Care | Caring for Poinsettias
For other Seasonal gardening tips click on the links below
April Gardenign Tips | May Gardening Tips | Summer Gardening Tips | Fall Gardening Tips | Winter Gardening Tips