| Rating | Book | Author |
| Hacienda Courtyards | Karen Witnyski |
| Hamarikyu, a Japanese Garden | Anika Ogusu |
| Handbook of Crocus and Colchicum | E.A. Bowles |
 (1) | Handbook of Cultivated Sedum | Ronald L. Evans |
| Handy Farm Devices: And How to Make Them | |
| Hanging Baskets | Andrew Mikolajski |
| Hanging Baskets and Wall Containers: A Practical Step-By-Step Guide | Jenny Hendy |
| Hangman's Root (China Bayles Mystery) | Susan Wittig Albert |
| Hardscaping: How to Use Structures, Pathways, Patios & Ornaments in Your Garden | Keith Davitt |
| Hardy Bamboos for Shoots & Poles | Daphne B. Lewis |
| Hardy Bamboos: Taming the Dragon | Paul Whittaker |
| Hardy Californians: A Woman's Life with Native Plants | Lester Rowntree |
| Hardy Geraniums | Peter F. Yeo |
| Hardy Gingers: Including Hedychium, Roscoea, and Zingiber (Royal Horticultural Society Plant Collector Guide) | T.M.E. Branney |
| Hardy Herbaceous Perennials (Gardener's Guide) | Leo Jelitto |
| Hardy Orchids: Orchids for the Garden and Frost-Free Greenhouse | Phillip Cribb |
| Hardy Palms and Palm-Like Plants | Martyn Graham |
| Hardy Perennials | Graham Rice |
| Hardy Rhododendron Species: a guide to identification | James Cullen |
| (1) | Hardy Roses: An Organic Guide to Growing Frost- And Disease-Resistant Varieties | Robert A. Osborne |
| Hardy Succulents | Gwen Kelaidis |
| Harvest of Murder (A Gardening Mystery) | Ann Ripley |
| Harvesting, Preserving, and Arranging Dried Flowers | Cathy Miller |
| Hawaii's Birds (5th edition) | Hawaii Audubon Society |
| Hawaiian Heritage Plants | Angela Kay Kepler |
| (1) | Haworthia and Astroloba | John Pilbeam |
| (1) | Haworthia for the Collector | Rodulf Schulz |
| Hawthorns and Medlars (Royal Horticultural Society / Timber Press Plant Collectors) | James B. Phipps |
| Healthy Soil (Best of Fine Gardening) | |
| (2) | Heat-Zone Gardening: How to Choose Plants That Thrive in Your Region's Warmest Weather | Dr. Henry Marc Cathey |
| Heathers (Little Plant Library) | Andrew Mikolajski |
| Heaven is a Garden | Jan Johnsen |
| (1) | Hebes: A Guide to Species, Hybrids and Allied Genera | Lawrie Metcalf |
| (1) | Hedgemaids and Fairy Candles: The Lives and Lore of North American Wildflowers | Jack Sanders |
| (2) | Heirloom Flower Gardens: Rediscovering and Designing with Classic Ornamentals | Jo Ann Gardner |
| (1) | Heirloom Flowers | Tovah Martin |
| (2) | Heirloom Vegetable Gardening: A Master Gardener's Guide to Planting, Seed Saving, and Cultural History | William Woys Weaver |
| (1) | Heirloom Vegetables: A Home Gardener's Guide to Finding and Growing Vegetables from the Past | Sue Stickland |
| Helen Van Pelt's African Violets | Helen Van Pelt Wilson |
| (1) | Heliconia: An Identification Guide | Fred Berry |
| (1) | Hellebores: A Comprehensive Guide | C. Colston Burrell |
| (1) | Hemerocallis: Daylilies | Walter Erhardt |
| (3) | Hemerocallis: Tthe Daylily | R.W. Munson, Jr. |
| (5) | Henry Mitchell on Gardening | Henry Mitchell |
| (1) | Her Garden was Her Delight: Famous Women Gardeners | E. Buckner Hollingsworth |
| (1) | Herb Garden Design | Ethne Clarke |
| Herb Garden Design | Faith H. Swanson |
| (1) | Herb Gardening | Patricia Hopkinson |
| Herb Gardens: Recipes & Herbal Folklore | Maggie Oster |
| Herb Topiaries | Sally Gallo |
| Herb Wise: Growing, Cooking, Wellbeing | Bruce Burnett |
| (3) | Herbaceous Perennial Plants: A Treatise on Their Identification, Culture, and Garden Attributes | Allan M. Armitage |
| Herbaceous Perennials Production: A Guide from Propagation to Marketing | Leonard Perry |
| (3) | Herbal Antibiotics: Natural Alternatives for Treating Drug-Resistant Bacteria (Storey Medicinal Herb Guide) | Stephen H. Buhner |
| (1) | Herbal Medicine-Maker's Handbook | James Green |
| Herbal Remedy Gardens: 38 Plans for your Health & Well-Being | Dorie Byers |
| (1) | Herbal: The Essential Guide to Herbs for Living | Deni Brown |
| Herbs & Edible Flowers | Lois Hole |
| (2) | Herbs & Spices: The Cook's Reference | Jill Norman |
| Herbs & Things: Jeanne Rose's Herbal | Jeanne Rose |
| Herbs (Little Plant Library) | Susie White |
| Herbs (RD Home Handbooks) | |
| Herbs (Southern Living Garden Guide Series) | Jennifer Greer |
| (1) | Herbs (Time-Life Encyclopedia of Gardening series) | Ogden Tanner |
| Herbs and Herb Lore of Colonial America | Colonial Dames of America |
| Herbs and Spices for Florida Gardens: How to Grow and Enjoy Florida Plants With Special Uses | Monica Moran Brandies |
| (1) | Herbs and Their Ornamental Uses (Plants & Gardens Vol 28, No 1, #68 - Brooklyn Botanic Garden) | Hester Mettler Crawford |
| (1) | Herbs for Sale: Growing and Marketing Herbs, Herbal Products, and Herbal Know-How (Bootstrap Guide) | Lee Sturdivant |
| (1) | Herbs for Use and for Delight: An Anthology from The Herbarist | Daniel J. Foley |
| Herbs in Bloom: A Guide to Growing Herbs as Ornamental Plants | Jo Ann Gardner |
| (1) | Herbs in Pots: Artful and Practical Herbal Containers | Rob Proctor |
| (1) | Herbs in the Garden | Rob Proctor |
| Herbs of Siddha Medicine, Vol.1 and 2 | Dr.J.Raamachandran |
| (1) | HERBS: Gardens, Decorations, and Recipes | Emelie Tolley |
| (1) | Herbs: How to Grow and Use Them | Jacqueline Heriteau |
| Herbs: The Complete Gardener's Guide | Patrick Lima |
| (1) | Here's How! To Garden In the Dallas-Ft Worth Area | Margie Korn |
| Hershey Children's Garden: A Place to Grow at Cleveland Botanical Garden | Maureen Heffernan |
| Heuchera, Tiarella and Heucherella: A gardener's guide | Charles Oliver |
| (1) | Heucheras and Heucherellas: Coral Bells and Foamy Bells | Dan Heims |
| Hibiscus | Jacqueline Walker |
| Hibiscus: Hardy and Tropical Plants for the Garden | Barbara Perry Lawton |
| High Altitude Western Gardening | Marilyn Quinn |
| (2) | High and Dry: Gardening With Cold-Hardy Dryland Plants | Robert Nold |
| High Country Herbs | Cheryl Anderson Wright |
| High Country Tomato Handbook | Cheryl Anderson Wright |
| Highbush Blueberry Production Guide | Marvin Pritts, editor |
| Hillside Landscaping | Hazel White |
| Hip Houseplants | Orlando Hamilton |
| (1) | Hippeastrum: The Gardener's Amaryllis (The Royal Horticultural Society Plant Collector Guide Series) | Veronica M. Read |
| (1) | hole's dictionary of hardy perennials | jim hole -hole's greenhouse |
| (1) | Hollies for Gardeners | Christopher Bailes |
| Hollies: The Genus Ilex | Fred C. Galle |
| Hollyhock Days: Garden Adventures for the Young at Heart | Sharon Lovejoy |
| Hollyhocks and Honeybees: Garden Projects for Young Children | Sara Starbuck |
| Home Gardener's Problem Solver: Symptoms and Solutions for More Than 1,500 Garden Pests and Plant Ailments (3rd edition | |
| (1) | Home Ground: A Gardener's Miscellany | Allen Lacy |
| Home Solar Gardening: Solar Greenhouses for Your House, Backyard or Apartment | John H. Pierce |
| Home Tree Home: Principles of Treehouse Construction and Other Tall Tales | Peter N. Nelson |
| Homegrown fruit: Simple Secrets for Glorious Gardens--Indoors and Out | Mimi Luebbermann |
| Homeopathy for Plants | Christiane Maute |
| Homeowner's Guide to Landscape Design | Timothy M. Michel |
| (1) | Homescaping: Designing Your Landscape to Match Your Home | Anne Moyer Halpin |
| Hortica: Color Cyclopedia of Garden Flora and Indoor Plants | Alfred Byrd Graf |
| (1) | Horticulture Gardener's Desk Reference | Anne Moyer Halpin |
| (2) | Hortus Miscellaneous: A Gardener's Hodgepodge of Information and Instruction | Lorene Edwards Forkner |
| (4) | Hortus Third: A Concise Dictionary of Plants Cultivated in the United States and Canada | Bailey Hortorium |
| (1) | Hosta Book: Making Sense of Gardening | Paul Aden |
| (1) | Hosta Seizure | Jim Henry |
| Hosta: The Flowering Foliage Plant | Diana Grenfell |
| Hostas | Rosemary Barrett |
| Hostas (Foliage Plants in Garden Design) | Sandra Bond |
| Hostas and Other Shade-Loving Plants | Richard Bird |
| Hot Peppers: The Story of Cajuns and Capsicum | Richard Schweid |
| Hot Plants for Cool Climates: Gardening Wth Tropical Plants in Temperate Zones | Dennis Schrader |
| (1) | House Plants (RD Home Handbooks) | John Brookes |
| Houseplant Basics | David Squire |
| Houseplants & Indoor Gardening | Julie Bawden-Davis |
| Houseplants (Southern Living Garden Guide Series) | Kathleen English |
| Houseplants A to Z: Buying, Growing, Arranging | Cecelia Heffernan |
| Houseplants for Dummies | Larry Hodgson |
| Houseplants: Practical Gardening Handbook | Peter McHoy |
| (3) | Houston Garden Book: A Complete Guide to Gardening in Houston and the Gulf Coast | John Kriegel |
| How Does Your Garden Grow? Understand Your Plants & Get the Best Out of Your Garden | Chris Beardshaw |
| (1) | How Indians Use Wild Plants for Food, Medicine and Crafts | Frances Densmore |
| (1) | How Plants Get Their Names | Liberty Hyde Bailey |
| How to Be a Gardener: Back to Basics (Book One) | Alan Titchmarsh |
| How to Be a Gardener: Secrets of Success (Book Two) | Alan Titchmarsh |
| How to Build Ponds and Waterfalls: The Complete Guide | Jeffrey Reid |
| How to Build Walks, Walls & Patio Floors | Steve Cory |
| How to Create a Wildlife Garden: Complete instructions for designing and planting wildlife habitats | Christine Lavelle |
| How to Get Started in Northeastern Gardening (First Garden) | Darrell Trout |
| How to Get Started in Rocky Mountain Gardening | Rob Proctor |
| (1) | How to Get Started in Southwest Gardening (First Garden) | Janice Busco |
| How to get your lawn & garden off drugs: Pesticide-free gardening for a healthier environment | Carole Rubin |
| How to Get Your Lawn off Grass: A North American Guide to Turning Off the Water Tap and Going Native | Carole Rubin |
| How to Grow a Chair: The Art of Tree Trunk Topiary | Richard Reames |
| How to Grow African Violets | Editors of Sunset Books & Magazines |
| How to Grow Almost Everything | Stanley Schuler |
| How To Grow Food In Your Polytunnel | Andy Mckee |
| (2) | How to Grow Fresh Air: 50 Houseplants That Purify Your Home or Office | B.C. Wolverton |
| (1) | How to Grow Great Potatoes | Lucia Grimmer |
| (1) | How to Grow Juicy Tasty Tomatoes | Annette Welsford |
| (3) | How to Grow More Vegetables: And Fruits, Nuts, Berries, Grains, and Other Crops Than You Ever Thought Possible on Less Land Than You Can Imagine | John Jeavons |
| How To Grow Organic Vegetables In Containers (?Anywhere!) | Eileen M. Logan |
| (2) | How to Grow World Record Tomatoes: A Guinness Champion Reveals His All-Organic Secrets | Charles Wilber |
| (3) | How To Grow Your Own Chinese Vegetables | Geri Harrington |
| (1) | How to Have a Green Thumb Without an Aching Back: A New Method of Mulch Gardening | Ruth Stout |
| How to Identify Flowering Plant Families: A Practical Guide for Horticulturist and Plant Lover | John Philip Baumgardt |
| How to Identify Grasses & Grasslike Plants: Sedges and Rushes | Harold David Harrington |
| How to Identify Plants | Harold David Harrington |
| How to Know and Grow Gesneriads | Peter Shalit |
| (1) | How to know the Ferns | Frances Theodora Parsons |
| (1) | How to Know the Wild Flowers | Mrs. William Starr Dana |
| How to Make a Forest Garden | Patrick Whitefield |
| How To Make and Use Compost | Nicky Scott |
| How to Make Your Garden Grow: A Beginner's Guide to Popular Garden Plants | Toby Buckland |
| How to Select & Grow African Violets | Theodore James Jr. |
| How to Select, Use & Maintain Garden Equipment | T. Jeff Williams |
| How to Start a Home-Based Landscaping Business, 5th Edition | Owen E. Dell |
| How to Store Your Garden Produce | Piers Warren |
| How to Survive a Garden Gnome Attack | Chuck Sambuchino |
| How-To Hydroponics, Fourth Ed. | Keith Roberto |
| How-To-Grow World Class Giant Pumpkins | Don Langevin |
| How-to-Grow World Class Giant Pumpkins II: Sequel to the Classic Book on Growing Giant Pumpkins | Don Langevin |
| How-to-Grow World Class Giant Pumpkins III | Don Langevin |
| (1) | Howard Garrett's Plants for Texas | John Howard Garrett |
| (1) | Howard Garrett's Texas Organic Gardening Book | John Howard Garrett |
| Howard Garrett's Texas Trees | John Howard Garrett |
| Hoyas of Northeastern New Guinea | Dale Kloppenburg (translator) |
| Hummingbird Gardens | Barbara Nielsen |
| (1) | Hummingbirds and Flowers They Love | Joe Lively |
| Hydrangea Production (Growers Handbook Series) | Douglas A. Bailey |
| (1) | Hydrangeas | Glyn Church |
| (1) | Hydrangeas for American Gardens | Michael A. Dirr |
| Hydrangeas: A Gardeners' Guide | Toni Lawson-Hall |
| Hydroponic Food Production: A Definitive Guidebook of Soilless Food-Growing Methods (6th Ed.) | Howard M. Resh |
| Hydroponic Gardening: The "Magic" of Modern Hydroponics for the Home Gardener | Raymond Bridwell |
| Hydroponic Home Food Gardens | Howard M. Resh |
| Hydroponic Tomatoes for the Home Gardener | Howard M. Resh |
| Hydroponics for the Home Gardener | Stewart Kenyon |
| Hydroponics: A Practical Guide for the Soilless Grower | J. Benton Jones, Jr. |
