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October is one of my favorite months of the year. The days are mild with low humidity and little wind. Nights get cooler, sometimes cold enough for a fire in the fireplace. As the days shorten the leaves turn their brilliant colors. And many ornamental trees and shrubs sport colorful ripe berries. But it is a bittersweet time as the leaves fall signally the winding down of the growing season. Just this week we received a notice in the mail from the township with instructions for leaf pick-up. I think everyone has fond memories of raking leaves or at least the fun they had jumping the piles after someone else’s hard work. When I see all the leaves raked to the curb throughout town I wonder if the homeowners realize what they are throwing away. Fallen leaves, along with twigs and bark, are part of nature’s mulching system. In the woods the fallen leaves protect roots, seedlings and tender plants through the winter. Over time this mulch layer decomposes adding valuable nutrients and organic matter to the soil. It’s a natural recycling system with no waste. Gardeners can take a hint or two from nature and put the leaves to good use in their landscape. Leaves that fall in the shrub and flower borders can be left there as mulch. Use some to lightly cover newly planted perennials to prevent winter heaving. Rose bushes should be protected through the winter with light mulch around the crowns (the graft union at the base of the plant). Leaves are the perfect choice. In the vegetable garden leaves can be used to cover the bare soil. Shredding them first is beneficial. The shredded leaves will decompose faster and start to add organic matter to the soil sooner. In my own vegetable garden I add a layer of shredded leaves and grass clippings to all the raised beds. By the following spring most of this layer is well rotted. The remainder is left in place as mulch for early spring crops. Leaves can be shredded using a chipper/shredder machine or simply run over them a few times with a mower. About the only area in the yard that you shouldn’t let the leaves accumulate is on the lawn. A covering of leaves can smother the grass if left there long enough. Any leaves that are left after tending to all the garden areas can be gathered into the compost pile. Dried leaves are the primary source of brown material for the compost pile. The brown material balances all the greens that have accumulated in the pile all summer. Grass clippings, weeds and vegetable trimmings are all green materials in the compost equation. Another favorite gardening ritual of fall is planting bulbs. It seems that no matter how complete your garden may be there is always somewhere to tuck in a few bulbs. Ideally bulbs should be planted before the ground freezes. They need to establish roots before it’s too cold, but without initiating shoot or leaf growth. In our zone 6 that time is between mid-October and mid-December. Most bulbs aren’t too fussy about soil type; just pick an area that is well drained and mostly sunny. They can be added to perennial beds, shrub borders, rock gardens, woodlands, lawns and containers. If you like the natural look of bulbs planted in the lawn, be sure to choose a site that doesn’t need to be mowed early in the spring. After the flowers fade the foliage continues to grow for about six weeks before it dies back. Bulbs need to be planted right side up. Most varieties are tapered at the top, similar to an onion. The bottom of the bulb often has some remnants of dried roots. If in doubt you can plant the bulb in question sideways and it will grow properly. Follow the guide for planting depth that accompanies your bulb purchase. The general rule is to plant four times deeper than the bulb diameter. Compost, bone meal or bulb fertilizer can be added to the planting soil. Bulb planting tools can be helpful for planting one bulb at a time. For clumps or mass plantings it may be easier to use a trowel or a shovel. Water the bulbs after planting and spread a 2-inch layer of mulch. Use a few more of those fallen leaves! Beth Nardone, botanist, is a resident of Hillsborough and is the Nursery Manager at the Belle Mead Co-Op. Questions and comments can be sent to bethtanical@patmedia.net |