Companion planting
Lettuce 伴生植物
汇总开放品种笔记中的有益与忌避伴生（驱虫、土壤与风味）。
Adapted from Wind River Greens Plant Variety Database (CC BY 4.0) — 105 varieties in lettuce. Credits
宜同种
常推荐与 Lettuce 相邻的伴生。
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Carrots (108)
Deep roots don't compete with shallow lettuce roots, provides ground coverage Deep roots don't compete with shallow lettuce roots, good space utilization
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Chives (108)
Deters aphids and other soft-bodied insects with strong scent Repels aphids and improves lettuce flavor while providing natural pest deterrent
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Radishes (108)
Fast-growing, helps break up soil and can be harvested before lettuce needs space Quick harvest before lettuce matures, helps break up soil
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Spinach (106)
Similar growing requirements, can be interplanted for succession harvests Similar growing conditions and water needs, efficient space usage
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Marigolds (104)
Natural pest deterrent, repels nematodes and aphids that damage lettuce Repels nematodes and aphids, attracts beneficial insects
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Nasturtiums (104)
Acts as trap crop for aphids and cucumber beetles, attracts beneficial predators Trap crop for aphids and cucumber beetles, adds color to garden
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Garlic (100)
Repels aphids, slugs, and other pests that commonly attack lettuce Strong scent deters slugs, snails, and aphids that commonly attack lettuce
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Dill (82)
Attracts beneficial insects like ladybugs and parasitic wasps that control lettuce pests Attracts beneficial insects and may improve lettuce growth when young
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Parsley (32)
Attracts beneficial insects and doesn't compete for space Attracts beneficial insects and has similar water requirements without competing for space
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Basil (16)
Repels aphids and whiteflies, may improve flavor Repels aphids and flea beetles that commonly attack kale
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Lettuce (10)
Provides ground cover and shares similar growing conditions Similar growing requirements and compatible root systems
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Peas (4)
Nitrogen-fixing legume enriches soil and provides natural shade for cool-season lettuce Fix nitrogen in soil which benefits leafy spinach growth
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Cilantro (3)
Attracts beneficial insects, provides shade during hot weather, similar water needs Attracts beneficial insects like ladybugs and parasitic wasps that control lettuce pests
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Beans (2)
Fix nitrogen in soil and provide beneficial ground cover Fix nitrogen in soil which benefits the leafy growth of Malabar spinach
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Strawberries (2)
Provide ground cover and living mulch while spinach grows vertically Provides ground cover and both prefer slightly acidic soil conditions
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Celery (1)
Both prefer consistently moist soil and cool growing conditions
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Cucumber (1)
Similar heat and moisture requirements, can share vertical growing space
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Mâche (Corn Salad) (1)
Similar cool-season growing requirements and compatible growth habits
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Marigold (1)
Repels nematodes and aphids while attracting beneficial insects
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Mint (1)
Thrives in similar moist conditions and helps repel ants and rodents
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Nasturtium (1)
Acts as trap crop for aphids and cucumber beetles
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Okra (1)
Both thrive in hot, humid conditions and complement each other's growth habits
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Onions (1)
Deter cabbage worms and aphids while not competing for space
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Peppers (1)
Both enjoy warm weather and similar growing conditions, peppers deter some leaf-eating pests
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Tomatoes (1)
Malabar spinach provides living mulch and ground cover while tomatoes offer climbing support
宜分开
常建议远离 Lettuce 的组合。
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Broccoli (98)
Competes for nutrients and space, can shade lettuce and stunt growth Heavy feeder that competes for nutrients, may shade delicate lettuce
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Sunflowers (94)
Allelopathic compounds inhibit lettuce germination and growth Tall growth creates excessive shade and competes heavily for water and nutrients
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Fennel (64)
Inhibits growth of most garden plants including lettuce through allelopathy Allelopathic properties inhibit lettuce growth and development
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Parsley (15)
Can stunt lettuce growth when planted too closely due to root competition Can attract carrot flies and compete for similar nutrients in the root zone
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Walnut trees (14)
Produce juglone, a natural herbicide toxic to lettuce and many other plants Juglone toxicity severely stunts or kills lettuce plants
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Brassicas (9)
Compete for similar nutrients and can attract shared pests like flea beetles Attracts same pests like flea beetles and cabbage worms
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Tomatoes (8)
Large root system competes for nutrients and water needed by shallow-rooted lettuce Compete for nutrients and may stunt kale growth through allelopathic effects
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Celery (4)
Competes for similar nutrients and water, both being shallow-rooted crops Competes for similar nutrients and space, both prefer cool moist conditions
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Strawberries (4)
Compete for nutrients and space, can inhibit brassica growth Different watering needs and may harbor slugs that eat arugula
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Black Walnut (2)
Releases juglone toxin that inhibits growth of many vegetables including orach Produces juglone toxin that is harmful to most vegetables including Malabar spinach
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Mint (2)
Aggressive spreading nature can overwhelm sorrel and dominate growing space Aggressive spreading nature can overwhelm delicate claytonia plants
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Beans (1)
Can shade lettuce excessively and compete for nutrients in the root zone
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Carrots (1)
Different water requirements - carrots prefer well-drained soil while watercress needs constant moisture
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Pole Beans (1)
Create too much shade and compete heavily for nitrogen that kale needs
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Potatoes (1)
Heavy feeders that compete for nutrients and may shade out spinach
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Sunflower (1)
Releases allelopathic chemicals and creates too much shade for lettuce
FAQ: companion planting with Lettuce
What are good companion plants for Lettuce?
Frequently cited companions include Carrots, Chives, Radishes, Spinach, Marigolds, Nasturtiums, Garlic, Dill, Parsley, Basil, Lettuce, Peas. Reasons come from open cultivar notes (pest deterrence, soil, flavour).
What should I avoid planting near Lettuce?
Often avoided: Broccoli, Sunflowers, Fennel, Parsley, Walnut trees, Brassicas, Tomatoes, Celery, Strawberries, Black Walnut.
效果因气候、土壤与品种而异。请以当地为准。数据改编自 Wind River Greens（CC BY 4.0）。