PRODUCTION

Your May Garden Checklist with Mike Darcy


May 3, 2023

The old saying of “April showers will bring May Flowers” is certainly hopeful for gardeners in the Pacific Northwest. With having one of the coolest and wettest springs in memory, seeing May flowers would be delightful. It seems as though most plants are 1-2 weeks behind their usual bloom and growth schedule. A Salem (OR), garden friend recently told me that his camellias were about two weeks behind their usual blooming time. However, gardeners keep moving forward without letting the rain be too much of a detriment, and plants may be behind their usual schedule, but they are still growing.

beautiful pink hanging basket

Hanging Baskets

May is the month when garden centers have their best selection of hanging baskets. Fuchsias are often used in hanging baskets, either as a fuchsia only basket or fuchsias mixed with other flowering plants. Most fuchsia baskets need some protection from the hot afternoon sun and giving them such a location will allow them to thrive. Often baskets feature plants that are either shade loving or those that like a sunny location. Keep in mind that these baskets have probably been growing in a controlled environment and may need some special care initially. Most baskets are going to need to be watered once a day and a water wand is very helpful. Consider fertilizing them on a weekly basis with a water-soluble fertilizer. With proper care, flower baskets will bloom all summer and into the fall.

Annual Flowering Hanging Basket 10"- Comes in assorted colors and types

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fresh ripe red tomatoes on plant

Tomato Plants

Usually, tomato plants can be set out in the garden. Check the plant labels and select early, mid, and late season varieties to extend the harvest. Plant labels will give an estimate of days to harvest after planting. Most tomato plants are going to need some kind of support and there are various wire cages and structures for this purpose. If nighttime temperatures remain cool, consider using a plastic type wrap over the cages, be sure to remove it on sunny days. Tomatoes can also be planted in containers and whether in the ground or in pots, tomatoes need a location with full sun.

Galvanized Tomato Cage, 14 in. X 42 in.

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Galvanized Tomato Cage, 12 in. X 33 in.

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G&B Organics, 4-6-3 Tomato, Vegetable & Herb Fertilizer

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Bonide, Tomato & Vegetable 3 in 1 Spray, 32 oz

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pink rhododendron bush in full bloom

Rhododendrons

Once rhododendrons have finished blooming, remove the old flowers. Be careful not to remove the new growth which might initially be difficult to see. If the plant needs pruning, do it immediately after flowering. This information would also apply to azaleas.

Lilly Miller 10-5-4 Rhododendron, Evergreen & Azalea Food, 4 lb.

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Down to Earth, Acid Mix, 5 lb

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G&B Organics, 4-5-2 Rhododendron, Azalea & Camellia Fertilizer

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Lilac bush in full bloom

Lilacs

Once lilacs are through blooming, remove the old flowers. Lilacs often grow more vigorously than homeowners expect and after flowering is a good time to do some pruning. Don’t be afraid of doing some major pruning if needed.

slug on gravel

Slugs

With warm weather, slugs will begin munching on desirable plants. This is the time to use some kind of control measures to keep slugs at least somewhat under control. Always read and follow label instructions because some slug baits cannot be used around edible plants and some slug baits can be poisonous to dogs.

Corry's Slug & Snail Killer, 1.75 lb.

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Sluggo Slug & Snail Killer, 2.5 lbs.

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Sluggo, Plus Slug & Snail Killer, 2.5 lb

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Sluggo Plus Slug & Snail Killer, 1 lb.

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Person pruning blooming rose bush

Roses

Roses should be actively growing, and this is the time to apply a rose fertilizer. There is a wide selection of rose fertilizers available and there are both inorganic and organic types. Briefly scratch the fertilizer into the soil around the base of the plant and then water.

BioAdvanced All-In-One Rose & Flower Concentrate

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BioAdvanced, All in One Rose and Flower Care, 4 lb

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Down to Earth, Premium Rose & Flower Food, 5 lb

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Bonide, Rose Shield Spray, 32 oz

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May is also the month when many flowering annuals and perennials can be set out in the garden. While browsing the garden center, if you see a plant that you are not familiar with, think about giving it a try. It is always fun having something new in the garden. Sometimes it is a failure but often times it is a new discovery that can be planted again next year!

Enjoy your garden! That’s what it is for!

MIKE’S GARDEN IS LOCATED IN OREGON’S WILLAMETTE VALLEY AND HIS ADVICE IS CONSISTENT WITH THE MILD CLIMATE THERE.

We would love to see your garden projects, use #mywilcolife on Facebook, Twitter, or Instagram and tag Wilco Stores.