Note: Page numbers in italics refer to illustrations.
Aluminum foil, 9, 54–55, 66–67
Appearance, 2–3, 2, 10, 21, 27, 64, 66, 68, 70, 72, 84
depth of mulch, 75–78, 84, 85, 86, 88, 117
quantities needed, 75–76
stem protection, 21, 77, 79, 84, 86, 89, 112
Asparagus, 95–96
Asphalt, 66–67
Availability of mulch, 63
Azaleas, 87
Bark and nuggets, 24, 27–30, 33, 65–67, 75, 81, 84–86, 88, 90, 93
Beets, 97–98
Benefits, mulching 4–10, 5, 6, 7
Buckwheat hulls, 40, 65–67, 78, 93
Cabbage, 98
Carrots, 99–100
Celery, 100
Choosing a mulch, 63–65
Cocoa hulls, 24, 41, 65–67, 84, 85, 88, 93
Coffee grounds, 25–26, 47, 66–67, 76
Cold frame, 62
Compost, 12, 22, 23, 26, 47, 49, 66–67
Corncobs and cornstalks, 24, 34, 66–67, 78, 80
Cottonseed hulls, 41–42, 66–67
Depth, mulch, 75–78, 84–86, 88, 117
Disease control, 9, 17, 82, 109
Diseased plants, reuse of, 10
Diseases, mulch-caused, 10, 17, 28, 32–33, 37, 81, 87, 89, 97, 104, 112
Drawbacks to mulching, 14–21
Earthworms, 8, 14–15, 31, 39, 47, 80, 84
Erosion control, 8, 27, 29, 55, 58, 83
Evergreen boughs, 29–30, 68–69, 90, 114, 116
Feeding mulches, 26
Fertilizer, 9–10, 13, 19, 33, 51, 78, 80, 82, 84–87
Fruits, 9, 57, 60, 99, 107, 109–19, 116
Garlic, 102
Geotextiles, 19, 24, 56, 58, 68–69, 84
Grass clippings, 24, 34–35, 65, 68–69, 79
Green manures, 25, 35–36, 68–69
Ground covers. See Living mulches
Hay, 2, 13, 15, 17, 19, 24, 26, 36–37, 62, 68–69
application of, 79
Homemade mulches, 25–26
Humus, 23
Impervious mulches, 5, 17, 19. See also Plastic
Inorganic mulches, 7, 24, 27, 62. See also specific mulches
Insects
beneficial, 36
control of, 9, 42, 55, 58, 98, 102
infested plants, use of, 10
mulch, breeding in, 20
Kale, 102
Kelp. See Seaweed
Leaf mold, 38–39, 68–69, 75, 85, 86, 88
Leaves, 17, 19, 24, 26, 37–38, 38, 47, 68–69, 70–71, 76, 85, 88, 90
Leeks, 102
Lettuce, 103
Licorice root, 43, 68–69, 84, 88
Light, need of soil for, 16–18
Light-reflective mulches, 9, 54–55, 57, 66–67
Living mulches, 24, 35, 68–69, 84
Longevity of mulch, 64–65
Mulch, defined, 23–25
Nitrogen
deficiencies, 15, 18–19, 31, 32, 37, 80
Onions, 103–4
Organic mulches, 7, 8, 19, 27–54, 62. See also specific mulches
definition, 23–24
quantity needed, 75–76
specialty and regional, 40–46
troubleshooting, 80–82
Ornamentals, 77, 83–93. See also Perennials; Shrubs; Trees
Overmulching, 19, 32–33, 76, 77, 84, 86
Paper mulches, 52–54, 54, 65, 68–71
biodegradable black, 52
newspaper, 53
Parsley, 104
Parsnips, 104–5
Peat moss, 17, 21, 48–49, 70–71
Perennials, 24, 29, 84, 88–90, 114
Permanent mulches, 24–25, 25, 84
pH, 39, 44, 46, 49, 51, 61, 87
Pine needles, 17, 39, 70–71, 85, 90
Plant stress, reduction of, 9
Plastic (polyethylene), 24, 57–60, 62, 65, 70–71
black, 5, 7, 18, 19, 57, 59, 59, 60, 109
troubleshooting, 82
Poison ivy, sumac, or oak, 10
Potash, 51
Potatoes, 106–7
Poultry litter, 49–50, 65, 70–71
Quantity of mulch needed, 75–76
Radishes, 107
Refreshing mulch, 19, 76–77, 80, 84
Rhododendrons, 87
Rhubarb, 107
Roses, 20, 29, 61, 87, 90–93, 91–92
Sawdust, 18, 21, 30–31, 72–73, 80
Seed-free mulches, 26
Seeds, germination of, 17, 78, 99
Selective Reflecting Mulch (SRM), 57, 60, 109
Sheet composting, 12–13, 13, 15, 25, 51, 114
Shredders/chippers, 10, 26, 114
Shrubs, 21, 29, 58, 61, 77, 86–87, 90
Sludge, processed, 50–51, 70–71
Slugs/snails, control of, 20
Soil temperature
color of mulch, effect of, 40, 78
control of, 4, 7, 7, 18, 60, 61, 66, 68, 70, 72, 83, 84
high, effect on plants of, 7, 15, 18, 40, 43, 57, 58, 109
Spinach/Swiss chard, 107
Stem protection, 21, 77, 79, 84, 86, 89, 112
Stone, 24, 25, 27, 61, 64, 72–73, 84, 86
Stout, Ruth, 3, 9, 11–14, 13, 16, 19, 36, 37, 100–101, 103
Straw, 19, 21, 24, 39–40, 65, 72–73, 76, 80, 118
Sugarcane (bagasse), 46, 72–73
Summer mulches, 24, 92–93, 112–13
Sweet potatoes, 108
Tomatoes, 7, 9, 57, 58, 60, 108–9
Trees, 21, 58, 61, 77, 85–86, 112, 117
Vegetable gardens, 31, 47, 57, 59, 64, 77–79, 79, 94–109, 95. See also specific vegetables
biosolids in, 50–51
plants, protection of, 9
wide-row plantings, 41–42
Water
penetration, 8, 15, 19, 64, 67, 69, 71, 73
retention, 4, 5, 5, 14–17, 27, 64, 67, 69, 71, 73
Weed control, 4, 6, 6, 14–16, 18, 27, 66, 68, 70, 72, 83
Wickenden, Leonard, 3, 14–16, 20
Winter mulches, 24, 51, 90–92, 111, 114–16, 116, 118
Wood products, 18–19, 27–33, 66–69, 72–73, 81. See also Bark and nuggets; Sawdust
chips, 18, 32–33, 72–73, 80, 84, 85
Xeriscaping, 1–2