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June Gardening Tips for Oklahoma
Fruit and Nut — Renovate overgrown strawberry beds after the last harvest. Start by setting your lawnmower on its highest setting and mow off the foliage. Next thin crowns 12-24 inches apart. Apply recommended fertilizer, preemergence her bicide if needed and keep watered.
Trees and Shrubs — Vigorous, unwanted limbs should be removed or shortened on new trees. Watch for forks in the main trunk and remove the least desirable trunk as soon as it is noticed.
Pine needle disease treatments are needed again in mid-June.
Remove tree wraps during the summer to avoid potential disease and insect buildup.
Softwood cuttings from new growth of many shrubs will root if propagated in a moist shady spot.
Protect trees from lawnmowers and weed eaters by mulching or using protective aerated covers.
Flowers — Pinch back leggy annuals to encourage new growth. Fertilize and water appropriately.
Feed established mums and other perennials.
When picking fresh roses or removing faded ones, cut back to a leaflet facing the outside of the bush to encourage open growth and air circulation.
Stake tall perennials before toppling winds arise.
agriculture.okstate.edu/