Pennyroyal
Mentha pulegium
Pennyroyal is affected by these good or bad companions/neighbours:
Good neighbours
- Chamomile (Matricaria chamomilla)
- Common Yarrow (Achillea millefolium var. millefolium)
- Kohlrabi (Brassica oleracea var. gongylodes)
- Stinging Nettle (Urtica dioica)
Bad neighbours
Pennyroyal is a good or bad companion/neighbour to:
Good neighbours
- Aztec Tobacco (Nicotiana rustica)
- Black Mustard (Brassica nigra)
- Bok Choy (Brassica rapa var. chinensis)
- Broadleaf Wild Leek (Allium ampeloprasum)
- Broccoli (Brassica oleracea var. italica)
- Brown Mustard (Brassica juncea)
- Brussels sprout (Brassica oleracea var. gemmifera)
- Cabbage (Brassica oleracea var. capitata f, alba)
- Cauliflower (Brassica oleracea var. botrytis)
- Chinese Cabbage (Brassica rapa var. pekinensis)
- Chinese Chives (Allium tuberosum)
- Chinese Desert-thorn (Lycium chinense)
- Chives (Allium schoenoprasum var. schoenoprasum)
- Collard greens (Brassica oleracea var. viridis)
- Common Beet (Beta vulgaris)
- Cultivated Garlic (Allium sativum)
- Cultivated Tobacco (Nicotiana tabacum)
- Eggplant (Solanum melongena)
- European Scopolia (Scopolia carniolica)
- Field Mustard (Brassica rapa var. oleifera)
- Garden Leek (Allium porrum)
- Garden Onion (Allium cepa)
- Garden Pea (Pisum sativum)
- Garden Tomato (Solanum lycopersicum)
- Irish Potato (Solanum tuberosum)
- Jerusalem Cherry (Solanum pseudocapsicum)
- Jimsonweed (Datura stramonium)
- Kohlrabi (Brassica oleracea var. gongylodes)
- Matrimony Vine (Lycium barbarum)
- Naranjilla (Solanum quitoense)
- Peruvian Groundcherry (Physalis peruviana)
- Ramp (Allium tricoccum)
- Rape (Brassica napus)
- Red cabbage (Brassica oleracea var. capitata f, rubra)
- Roundheaded Leek (Allium sphaerocephalon)
- Rutabaga (Brassica napus var. napobrassica)
- Savoy cabbage (Brassica oleracea var. capitata f, sabauda)
- Sticky Nightshade (Solanum sisymbriifolium)
- Strawberry Groundcherry (Physalis alkekengi)
- Sweet pepper (Capsicum annuum var. annuum)
- Tamarillo (Solanum betaceum)
- Tomatillo (Physalis philadelphica)
- Turnip (Brassica rapa var. rapa)
- Victory Onion (Allium victorialis)
- Welsh Onion (Allium fistulosum)
- White Garlic (Allium neapolitanum)
Bad neighbours
- Garden Cucumber (Cucumis sativus)