What to plant in April in Melbourne, Including a Companion Planting Guide
Sow Direct
Sow as Seedlings
Companion
Function
Avoid
Beetroot
Basil, Bush beans, Cabbage, Kohlrabi, Lettuce, Onion, Sage, Tomato   Climbing Beans & Mustard
Broad Beans
Brocolli, Cabbage, Cauliflower, Carrot, Celery, Corn, Potatoes   Fennel, Kohlrabi, Garlic
Broccoli
Beans, Beetroot, Carrots, Chamomile, Coriander, Cucumber, Dill, Lettuce, Lovage, Marjoram, Mint, Nasturtium, Pea, Potato, Rosemary, Sage, Tansy, Thyme Dill attracts Wasps to control White Cabbage Butterfly. Nasturtium repels aphids. Sage repels White Cabbage Butterfly Garlic Strawberry, Oregano
Brussel Sprouts
Beans, Celery, Dill, Hyssop, Mints, Nasturtium, Potato, Rosemary, Sage   Strawberry
Burdock
Bean, Celery, Dill, Hyssop, Mint, Nasturtium, Potato, Sage     
Cabbage
Same As Brocolli    
Carrot
Beans, Chives, Coriander, Cucumber, Leeks, Lettuce, Marjoram, Onion, Pea, Radish, Rosemary, Sage, Tomato
  Dill, Celery
Cauliflower
Same As Brocolli    
Chives
Apples, Cucumber, Lettuce, Peas
Plant around base of fruit trees to repel insects.
 Beans
Collards
Tomatoes    
Curry Leaf
     
Endive
Carrot, Radish, Strawberry, Cucumber 
   
Fennel
    Beans, Caraway, Dill, Fennel, Kohlrabi, Tomato
Garlic
Beets, Carrots, Chamomile, Lettuce, Raspberry,  Roses, Tomato, Summer Savory   Beans, Cabbage, Peas, Strawberry
Kale
Bush Bean, Beetroot, Celery, Cucumber, Lettuce, Onion, Potato.
   
Kohlrabi
Beetroot, Spinach, Leeks, Peas, Lettuce   Fennel
Leeks
Carrot, Celery, Majoram, Onion, Parsnip, Strawberry Improves growth of carrots, celery and onions.  
Lettuce
Cabbage, Carrot, Cucumber, Marjoram, Onion, Parsnip, Pea, Radish, Strawberry  
Beans, Beetroot, Parsley
Mustard Greens
Nasturtium    
Onions
Amaranth, Beetroot, Cabbage, Carrot, Celery, Chamomile, Leeks, Lettuce, Pepper, Potato, Roses, Strawberry, Tomato   Beans, Peas
Oregano
Cabbage, Cucumber    
Pak Choy
     
Parsley
Asparagus, Sweet Corn, Tomato Improves flavour of Asparagus and Tomato  
Peas
Beans, Beetroot, Brussel Sprouts, Cabbage, Carrot, Cauliflower, Celery, Cucumber, Lettuce, Lovage, Marjoram, Parsnip, Potato, Radish, Sage, Squash, Corn Sweet Corncan be used as “living stakes” for Peas Chives, Garlic, Onion, Shallots
Radish
Parsnip, Peas, Nasturtium, Lettuce, Cucumbers, Squash, Corn

All generally aid in repelling insects, Squash and Corn protect against borer

  
Rocket
     
Rosemary
Beans, Cabbage, Carrot, Sage    
Shallots
Beetroot, Lettuce, Strawberries, Tomatoes   Beans, Peas
Silverbeet
Beetroot, Cherry, Lavender, Marjoram, Onion
  
Basil, Wormwood
Snow Peas
Carrots, Endive, Winter Lettuce, Brassicas    
Spinach
Cabbage, Cauliflower, Celery, Eggplant, Onion, Peas, Strawberry   Beetroot
Spring Onion
Beetroot, Cabbage, Carrot, Lettuce, Potato, Strawberry, Tomato   Bean, Pea
Swedes
Peas, Lettuce, Onion   Potato
Turnip
Cucumbers, Lettuce, Nasturtium, Peas, Tomato
   Potato