Starting a Successful Vegetable Garden Jon Traunfeld- jont@umd.edu College of Agriculture and Natural Resources Why do people grow vegetables? • • • Flavor, freshness, pesticide-free Save money; learn new skills Health benefits exercise, nutrition, phytochemicals • • Connection to nature and family traditions Introduce youth to gardening Join the Grow it Eat it Network! • A program brought to you by Maryland Master Gardeners and the Home and Garden Information Center (HGIC) • Goals: – teach people how to grow food – increase the number of Maryland food gardeners – create a network of food gardeners who will keep learning and sharing through classes, workshops, events, web site, blog We teach a common-sense, ecological approach • Rely on locally available materials and resources- (rocks, leaves, animal manure). • Feed the soil (with organic matter) to increase garden productivity. • Maximize biological and genetic diversity to strengthen your garden eco-system. – Example: Plant an assortment of annual flowers and herbs to attract and feed beneficial insects. Ingredients for first year success • Good, deep soil; add organic matter. • Give your plants the nutrients, water, and sunlight they need. • Prevent weeds from growing. • Make a plan; give it a little time each day • Observe and take notes • ENJOY! What type of vegetable garden? • In-ground- convert turfgrass to vegetables • Containers- on back step, deck, or balcony or along driveway • Edible landscape- pepper, cabbage, Swiss chard, etc. mixed into ornamental beds • Combination of the first three Vegetable crops • 5-10 plant families may be represented in the average garden (almost all of our vegetable crops are non-native- not even from North America!) • Most are annuals with a life cycle somewhere between 25 days (radish, baby greens) to 110 days (big pumpkins.) • Require good growing conditions to produce high yields. • Can be incorporated into ornamental landscape. Making a plan • Good planning will save you time, work, and $ • Garden size; how big?- consider time, space, mouths to feed, motivation – Always best to start small • What should I grow – Easy crops – What your family will eat 7 good crops for starters… • • • • • • Tomato- productive and popular Pepper- slow-growing but worth the wait Cucumber- make them climb to save space Summer squash- feed the neighborhood! Bush bean- plant them twice Lettuce- grow best March-June and Sept.Nov. • Leafy greens- mustard, kale, collards, Asian greens, and Swiss chard (grows during hot weather) 2 cuke plants 3 ft. •Two raised beds- 8 ft. X 3 ft. with a 2 ft. path in the middle 3 pepper plants leaf lettuce 1 squash plant Swiss chard and kale 3 tomato 8 ft. plants row of bush beans Sample 8 ft. X 8 ft. garden •Time: late May •Both beds could have been planted in salad greens from April 1 through midMay Can I really save $? • Yes, but have you heard the one about the $100 tomato? • Only buy what you really need; be resourceful • An 8 ft. X 8 ft. garden with 48 sq. ft. of growing space should produce $175-300 of fresh produce Picking a site • Level ground; close to water source. • Southern exposure; tallest plants on North side. • Protection from critters. Digging and aerating tools Soil prep Kill sod and control weeds• Cover area with newspaper or cardboard, and cover with leaves, and compost OR • Dig up the area by hand or with a tiller Soil prep Slicing off sod Loosening subsoil Turning soil Sheet compost your way to a vegetable garden You need “good soil” • Well-drained • Friable- deep, crumbly; allows for maximum root growth. • Regular additions of organic matter will improve soil structure and create a reservoir of slow-release nutrients. • Test your soil; 6.0-6.8 is preferred range for soil pH. • Urban/suburban soils are often low quality soils Ways to add organic matter • • • • • • Farmyard manure (fall) Compost Shredded leaves and grass clippings Organic mulches Plant roots Cover crops • Large amounts of organic matter may be needed for several years. • Thereafter, 1 in. of compost will help maintain high yields. Cover crops improve and protect soils • Increase soil organic matter. • Mine the soil for nutrients. • Protect soil from erosion. Raised beds some advantages… • • • • Warm up quickly in spring. Drain well; less compaction and erosion. Increase available rooting area. Can produce greater food production per square foot. and some disadvantages… • Up-front labor and expense. • Dry out quickly if weather is hot and dry. • Don’t work on slopes, unless terraced. Raised bed basics 2-4 ft. wide; usually 6”-8” above grade; can be bordered with wood, stone, brick “Instant” raised bed filled with a purchased soil/compost mix Good info on most seed packets Growing healthy transplants Intensive gardening: getting the most per square foot • • • • Close planting Vertical growth Inter-planting Succession/relay planting How close is too close?? Correct spacing for big onions Okra plants are too tight Interplant to maximize production purslane is edible! Mustard greens on north side of tomatoes Keep the harvest coming with succession planting • Requires planning • Transplants fill the space quickly • Special attention to water and nutrient needs • Floating row cover for protection from pests and excessive heat An entire raised bed of Asian leafy greens. Get the most from every square foot: succession planting examples • • • • Garlic (11/1)-cucumbers (7/1)-oats/clover (9/20) Peas/favas (3/1)-squash (6/1)-kale (9/1) Lettuce (3/20)-green beans (5/15)-broccoli (8/1) Radish (3/1)-Asian greens (4/15)-eggplant (6/1)rye (9/15) • Cucumber (4/15)- green bean (7/1)-spinach (9/20) Most commonly available commercial organic fertilizers • • • • • • • • Fish emulsion: Seaweed extract: Bloodmeal: Cottonseed meal: Guano: Bone meal: Rock phosphate: Alfalfa meal: 6-2-2 1-.5-2 15-1-0 6-2.5-1.5 8 to 13-8-2 4-21-0 0-22-0 3-1-2 Fertilizing tips • Nitrogen is nutrient most often in short supply. Use one of the “meals” (kelp, fish, cottonseed, alfalfa) to supplement N from organic matter. • Follow label directions. • Organic fertilizers can be over-applied and burn plants or stimulate excessive leaf growth at the expense of fruit. • Add 1 inch of compost each year to contribute to long-term nutrient reservoir. Weed management • Weeds are plants that thrive in disturbed soil. • Best control methods: – – – – crop cover hand-pull sharp hoe mulch • Other methods: vinegar, flame weeder, commercial herbicidal soap. Organic mulches • • • • • • Prevent weed growth. Moderate soil temperatures. Conserve soil moisture. Add to soil organic matter. Should be spread after soil warms up. Can provide habitat for pests along with beneficial critters. Examples: grass clippings, newspaper covered with straw, shredded leaves, compost Synthetic mulches • Black plastic mulch warms the soil for earlier, higher yields of warm-season crops. • Red plastic mulch may produce higher yields of tomato than black plastic. • Landscape fabric warms and allows water and into soil. Can be re-used. soil air Drip irrigation: saves time and water Growing up: using vertical space • Increase yields per sq. ft. • Fewer fruit problems; easier to pick, water, and spray. • Adds complex texture to garden; enhances ecosystem (shading, micro-climates.) Fence out the critters Container vegetables Whiskey barrel- 1-2 plant capacity 8 cu. ft. of growing media EarthBox- “self-watering” container Univ. of MD Salad Table: Growing salad greens at waist height March-November Mixed greens cut at 1” above soil line University of MD Salad Box Resources • Grow It! Eat It! http://www.extension.umd.edu/growit – We have all types of practical food gardening tips and information. Check out our popular blog! • Home and Garden Information Center http://www.extension.umd.edu/hgic – Here you will find factsheets, photos, and videos. You can also subscribe to the free monthly e-newsletter. – We answer gardening questions 24/7…just click “Ask Maryland’s Garden Experts” • Maryland Master Gardener Program http://www.extension.umd.edu/mg – Consider becoming a trained MG volunteer! This program was brought to you by the Maryland Master Gardener Program Howard County University of Maryland Extension