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Guide to Fertilising in Spring

Here is our simple guide to fertilising in spring.

Keeping your garden well-fed and nourished is essential to help you grow healthy and thriving plants. Happy, healthy, well-nourished plants are more resistant to pests, diseases, heat stress and frost. Fertilizing the garden is easy to do, but you need to apply the right fertilizer for your plants at the right time of the year.

What is the best fertiliser to use and when?

Vegetables & Herbs:

Mix some Scotts Osmocote Veg Tomato, Herb & Garden Fertiliser through the soil before planting spring vegetables and herbs to help give your seedlings the best start in life. Water in well with Neutrog GOGO Juice.

As your edibles such as tomatoes and capsicums begin to set flowers, you can feed them with Neutrog Sudden Impact for Roses, the potassium, calcium and magnesium boost will help produce large and tasty tomatoes during summer.

It’s time to plant potatoes! Mix two handfuls per square metre of Neutrog Seamungus through the soil before planting your seed potatoes. As you cover the emerging shoots with straw or mulch, the occasional dose of a handful of Munash Rockdust per square metre is ideal.

Flowering Plants:

Sprinkle some Neutrog Strike Back For Orchids over any potted colour you have or are planting out this season. You’ll be rewarded cascades of colour over spring and summer.

Feed your roses and all other flowering plants (except natives) with Neutrog Sudden Impact for Roses or Scotts Osmocote® Controlled Release Fertiliser: Roses, Gardenias, Azaleas & Camellias. Water it in with Neutrog GOGO juice to encourage faster uptake of the nutrients by the plant

Fruit Trees:

Lightly tip prune citrus trees to encourage new growth and spread Neutrog Gyganic for Fruit and Citrus or Scotts Osmocote® Controlled Release Fertiliser: Citrus & Fruit around the drip zone of the plant. Repeat this application every 8 weeks until end of February


As natives finish flowering, prune them back by up to one third and feed with two good handfuls of Neutrog Seamungus per plant or OCP Eco Seaweed


Spring signifies the start of new growth for lawns. Give your lawn a good feed now with a nitrogen boosted fertiliser such as Nitrosol Liquid Blood and Bone Concentrate.

Now is a great time to fix bare patches in your lawn by spreading lawn seed over the area. Water it all in with Neutrog GOGO Juice


Use Neutrog Seamungus, Munash Indoor Plant Food, Munash Rockdust, OCP Eco Seaweed for all new plantings. There you go, a quick summary of what fertiliser to use based on the types of plants you have in your garden.

We have more about how to choose the best fertiliser for your garden and fertiliser explained in 3 easy steps if you’re looking for more information on fertilisers. Additionally, check out