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The 5 Best Fertilizers for Cabbage

Not all fertilizers are created equal. The difference between the best fertilizers out there and average fertilizers is drastic. It can mean the difference between healthy crunchy cabbage and bitter lifeless cabbage.

Our top recommendation is…

Greenpinky’s top pick:
  • Perfect nutrient balance
  • Quality ingredients
  • Great price
Check Amazon for Best Price

Among the different factors and products that help a cabbage grow appropriately, fertilizers play a crucial role. The fertilizer is what delivers all the necessary nutrients to allow your cabbage’s root zone and intracellular processes remain in homeostasis and grow. However, nowadays, there are so many choices that it can be hard to differentiate which fertilizers have the best ingredients that will deliver the proper nutrients to allow your cabbage to flourish. 

Read on to find out the important aspects to a good fertilizer and also to see my top 5 recommendations for fertilizers for cabbages.

Comparing Our 3 Top Recommendations for Cabbage Fertilizers

Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb
GreenPinky's Top Pick
J R Peters 52024 Jacks Classic No.1.5 20-20-20 All Purpose Fertilizer
Triple 10 All Purpose Liquid Fertilizer 10-10-10 with Amino Acids (5.5%) & Seaweed Extract (32oz)
Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb
J R Peters 52024 Jacks Classic No.1.5 20-20-20 All Purpose Fertilizer
Triple 10 All Purpose Liquid Fertilizer 10-10-10 with Amino Acids (5.5%) & Seaweed Extract (32oz)
N-P-K: 14-14-14
N-P-K: 20-20-20
N-P-K: 10-10-10
7,043 Reviews
1,294 Reviews
216 Reviews
$26.99
$19.03
$19.95
Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb
Osmocote Smart-Release Plant Food Flower & Vegetable, 8 lb
N-P-K: 14-14-14
7,043 Reviews
$26.99
GreenPinky's Top Pick
J R Peters 52024 Jacks Classic No.1.5 20-20-20 All Purpose Fertilizer
J R Peters 52024 Jacks Classic No.1.5 20-20-20 All Purpose Fertilizer
N-P-K: 20-20-20
1,294 Reviews
$19.03
Triple 10 All Purpose Liquid Fertilizer 10-10-10 with Amino Acids (5.5%) & Seaweed Extract (32oz)
Triple 10 All Purpose Liquid Fertilizer 10-10-10 with Amino Acids (5.5%) & Seaweed Extract (32oz)
N-P-K: 10-10-10
216 Reviews
$19.95
Cabbage3

The Best Cabbage Fertilizers

These are the best fertilizers for cabbages. They use quality ingredients and are much better than the other fertilizers on the market. Please keep reading below to learn more about each one. 

Best Fertilizers for Cabbages

For a quality fertilizer that nourishes plants in two ways, J R Peters Jacks Classic All Purpose Fertilizer is an excellent choice. This fertilizer contains a balance of phosphorus, potassium, and nitrogen that works well on a variety of plants but is particularly helpful in vegetables. The water soluble formula sinks into the soil, nourishing the roots to create healthier, stronger cabbages. The formula also nourishes through the leaves. Cabbages treated with this fertilizer often grow more quickly and have larger leaves that are deep green in color.

Osmocote Smart-Release Plant Food Flower & Vegetable is an excellent choice for establishing cabbages or promoting new growth in plants. The water soluble formula allows nutrients to enter directly into the soil. From there, they help to nourish the plant’s roots, ensuring that the plant is healthier overall. Because the nutrient formula is designed to release during temperature changes, plants will receive the most amount of nutrients during warmer weather, which is when plants are growing and require those nutrients the most. In addition, the slow-release formula means that plants will receive nutrients for up to four months. Gardeners will find that cabbages treated with this fertilizer grow more quickly and produce richly colored, large leaves.

Triple 10 All Purpose Liquid Fertilizer contains a balance of nutrients, amino acids, and seaweed extract that help to elevate soil quality and nourish a range of plants, including cabbages. This fertilizer formula is specifically designed to help plants grow larger and become healthier, even during later growth stages. The fertilizer is simple to measure out and pour and can be used every one to two weeks to ensure that plants receive the nutrients they require. Cabbages treated with this fertilizer display fuller foliage and are often larger, with more top growth.

Gardeners can feel great about using Dr Earth Premium Gold All Purpose Fertilizer because it’s made from organic materials that are safe for both people and pets. The formula is specifically crafted to grow healthier vegetable plants, and it is perfect for helping to establish and encourage growth in young cabbage plants. This fertilizer contains a blend of humic acids, carbohydrates, and trace elements and minerals that help to create a better soil quality and nourish plants from the roots up. It contains no GMOs and no chicken waste. Cabbages treated with this fertilizer will be hardier and healthier overall, with fuller, richer leaves.

Shultz All Purpose Plant Food Plus is the perfect choice for a range of plants, from ornamental indoor plants to outdoor vegetables. This liquid fertilizer, which contains a balance of essential nutrients, is easy to measure and apply. Adding a few drops of the fertilizer to the soil helps to feed and nourish plants for an extended period of time. Nutrients will be released into the soil, and thus to the plant, every time it rains or the plant is watered. Gardeners will find that cabbages treated with this formula experience new top growth and produce larger, fuller leaves.

cabbage 2

Cabbage Care Guide

Cabbage is a cool-season vegetable. That means it is suitable for both the spring and the fall. It belongs to the Brassica family, which includes broccoli, Brussel sprouts, collards, and cauliflower. It is not difficult to grow healthy cabbage with the right conditions – plenty of water and good fertilization.

Cabbage plants are heavy feeders and require lots of nutrients. Lack of food will stunt their growth and will lead to poorly developed heads. They also require lots of nutrients as they are high in water content. Without sufficient water, the heads will dry out and become bitter.

Planting Your Cabbage

When your first plant your cabbage, it is best if you can prepare the soil by mixing in compost or manure. Try to make sure the soil is also well draining – even though cabbage plants have high water requirements, sitting in still water will cause root rot. You’ll want to plant seedlings about 12-24 inches apart to ensure they grow well. The closer you plant them, the smaller the cabbages will be. Also make sure to plant in an area where there is full sun. They should be receiving 6 to 8 hours of direct sunlight per day. The optimal temperature for germinating seeds is about 77F and the optimal temperature for cabbage transplantation is around 50F.

How to Properly Water Cabbage

Cabbage plants need at least one good, deep soak of water per week. Part of the reason they do better in cool seasons is because there is no sun that quickly dries out the soil and strips the soil of water. Deep watering is better than several shallow soaks. Cabbage roots run deep.

When watering cabbage plants, try to keep the water pressure low to prevent washing away soil. Try to primarily focus on watering the soil around the base of the plant rather than the leaves themselves. Wet leaves encourage pests and diseases. A good way to prevent this is to use soaker hoses, which direct water directly into the soil around the plant. Water in the morning, to allow any water that may have gotten on the leaves to evaporate.

Best fertilizer for cabbage

Ideal Fertilizer for Cabbage

Cabbages are heavy feeders. The ideal fertilizer has an N-P-K ratio of roughly 1-1-1 (can be found commonly as 10-10-10 or 12-12-12). These numbers are the amount of nitrogen, phosphorous, and potassium found in the fertilizer. Cabbage plants do best with a couple feedings of fertilizer throughout their growth. Early in their growth, you can use granular fertilizers, but after they reach about 6 inches tall, it is easier to use water mix fertilizer. If granular fertilizer comes in direct contact with the cabbage plant, it can cause leaf burn.

Harvesting Cabbage

Cabbage is usually ready to be harvest around 70-90 days. Plan to harvest around this time. Press down on the cabbage to see if it is firm, which indicates its ripeness.

When you are harvest, use a sharp knife. Cut through the stem, below the head. Remove the head, but not the stem. Sometimes, if the weather is still cool, additional heads may grow from the remaining stem. These heads can be eaten as well – they are small and less dense, but still taste great.

Bottom Line

Again, I recommend buying J R Peter’s All Purpose Fertilizer. Don’t make the mistake of buying any average fertilizer at your local gardening store. Many of them will simply not produce the same results. You cannot go wrong with any of the fertilizers above. 

Happy Planting!

About the author: Carley Miller is a horticultural expert at TheGreenPinky. She previously owned a landscaping business for 25 years and worked at a local garden center for 10 years. Read More