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Mercer County Horticultural Activities and Expectations
Click a month button above to view a list of possible problems you might find in your home, landscape or garden during that month and also see a list of suggested “To Do” items:
First Frost on or about October 15
Things to Do This Month:
- bring in houseplants (early)
- band trees for fall cankerworm (early)
- bring in summer bulbs for storage
- plant spring bulbs
- plant garlic (late)
- harvest mature green tomatoes for ripening indoors before first frost
- Turf
- complete seeding by October 15th
- Don’t worry: zoysia turns tan with first frost
- handpick bagworms sacks off juniper, arborvitae, Colorado blue spruce, and other plants
- control hemlock woolly adelgid
Things to Watch for This Month:
- deer tick adult peak activity (to early December)
- winged yellow ants
- boxelder bugs on sunny exterior walls trying to get into the house
- western conifer seed bug trying to overwinter in house
- Asian lady beetles trying to overwinter in house
- normal yellowing and dropping of white pine needles
- osage orange (green-brain) fruit found along roadsides
- leaf-loss on weeping figs a couple of weeks after being brought indoors
