ProBase+ Complete Liquid Fertiliser: Our Vegetable Seedling Feed, Now Unlocked for You

For years, professional vegetable seedling growers have relied on carefully balanced plant nutrition to produce strong, healthy and consistent young plants. Now, Quality Plants & Seedlings has unlocked one of our trusted liquid feeding options for our customers, clients and home growers.
ProBase+ Complete Liquid Fertiliser is a concentrated liquid plant feed designed primarily for vegetable seedling growers, while also being suitable for herbs, edible plants, potted plants, fruiting crops, lawns, turf and general garden use.
This is not just another bottle on the shelf. ProBase+ is inspired by the type of feeding programs used in real growing environments, where seedling strength, root development, colour, consistency and plant performance matter every day.
Built First for Vegetable Seedling Growers
Vegetable seedlings need the right nutrition at the right time. A young plant that is underfed can become pale, weak or slow to establish. A well-fed seedling has a better chance of developing strong roots, healthy foliage and the resilience needed to transplant successfully.
ProBase+ has been created as a complete liquid fertiliser for growers who want more than a basic feed. It combines key plant nutrients with trace elements and natural inputs to help support healthier seedling growth, stronger establishment and better overall garden performance.
The secret is out — our grower-style formulation has now been unlocked for QPS customers and clients.
Why We Call It “Unlocked”
At QPS, we work with vegetable seedlings, growers and plant nutrition every day. We understand how important the right feed can be, especially during active growth periods when seedlings are working hard to build roots, leaves and structure.
ProBase+ gives customers access to a concentrated liquid feeding option that fits the same thinking used by growers: feed consistently, support the root zone, encourage strong establishment and give plants the nutrition they need when they need it most.
Grower knowledge, bottled for vegetable seedling growers.
Best Uses for ProBase+
ProBase+ is especially useful for vegetable seedling growers and edible garden production, including:
- Vegetable seedlings
- Herb seedlings
- Leafy greens
- Brassicas
- Tomatoes, capsicums and chillies
- Cucumbers, zucchini, pumpkin and squash
- Seedlings before transplanting
- Seedlings after transplanting
- Raised garden beds
- Potted edible plants
- Fruit trees and vines
- Lawns, grass and turf as a secondary use
Why ProBase+ Is So Useful for Vegetable Seedlings
Seedlings are only young, but they are doing a lot of work. They are building roots, leaves, stems and the structure they need to handle transplanting and future growth. A complete liquid feed like ProBase+ helps make regular feeding simple and consistent.
For vegetable seedling growers, ProBase+ may help support:
- Stronger early growth
- Healthier foliage colour
- Better seedling vigour
- Root-zone feeding during establishment
- More consistent feeding across trays, pots and garden beds
- Recovery after transplanting
- Ongoing nutrition during active growth
Also Handy for Lawns, Grass and Turf
Although ProBase+ has been positioned first for vegetable seedlings and edible plant growers, it can also be a useful liquid feed for lawns, grass and turf areas.
Grass growers know that a good lawn is not just about mowing and watering. Strong turf needs regular nutrition to maintain colour, density, recovery and root strength. ProBase+ can be diluted and applied evenly across lawn areas as part of a simple feeding routine.
For lawns and turf, apply when grass is actively growing and water in well after application. Avoid applying during extreme heat, drought stress or when the lawn is already under pressure.
Simple Mixing Rate
The standard application rate is easy to follow:
25 mL of ProBase+ per 10 L of water
Shake well before use, mix thoroughly into water, then apply around the root zone, tray, pot, garden bed or lawn area. For young seedlings or sensitive plants, start at a lower rate and build up as needed.
Application Guide
| Use | Suggested Rate | Notes |
|---|---|---|
| Young vegetable seedlings | 10–15 mL per 10 L | Start lower for newly germinated, young or sensitive seedlings. |
| Established seedlings | 15–25 mL per 10 L | Use once seedlings are actively growing and handling feed well. |
| Vegetables and herbs | 25 mL per 10 L | Apply weekly during active growth, or as needed. |
| After transplanting | 15–25 mL per 10 L | Apply around the root zone to support establishment. |
| Pots and ornamentals | 15–25 mL per 10 L | Apply to moist soil and avoid overfeeding small pots. |
| Fruit trees and vines | 25 mL per 10 L | Apply around the root zone during active growth. |
| Lawns, grass and turf | 25–50 mL per 10 L | Secondary use. Apply evenly and water in well. |
ProBase+ Feeder vs QPS A&B Nutrients
Both ProBase+ Complete Liquid Fertiliser and QPS A&B Nutrients are designed to support strong, healthy plant growth. The main difference is how technical the feeding program needs to be.
ProBase+ is the easier, all-in-one liquid feeder for vegetable seedlings, home gardens, herbs, pots and general edible growing. A&B Nutrients are a two-part nutrient system designed for more controlled growing, especially hydroponics, fertigation, coco/coir and higher-input production systems.
| Feature | ProBase+ Complete Liquid Fertiliser | QPS A&B Nutrients |
|---|---|---|
| Best described as | An easy, all-in-one complete liquid fertiliser for vegetable seedlings, edible gardens and regular plant feeding. | A two-part nutrient system for controlled feeding and professional-style growing. |
| Main purpose | To give seedlings, vegetables, herbs and garden plants a simple, balanced liquid feed during active growth. | To supply a complete nutrient solution where stronger control over plant nutrition is required. |
| Ideal users | Vegetable seedling growers, home gardeners, schools, backyard growers and edible plant growers. | Hydroponic growers, serious home growers, commercial-style users and customers wanting a more technical feeding program. |
| Ease of use | Very simple. Shake, measure, mix with water and apply. | Requires correct use of both Part A and Part B. Each part should be added separately to water and mixed properly. |
| Best fit for seedlings | Excellent for simple seedling feeding. Start low, then increase as seedlings establish. | Excellent for controlled seedling production. Better when growers are managing media, EC, pH and crop stage closely. |
| Standard rate | 25 mL per 10 L of water for general feeding. Use lower rates on young seedlings. | Use according to the A&B product directions and crop requirements. Rates vary depending on plant type, growth stage and growing system. |
| Where it works best | Vegetable seedlings, herbs, edible gardens, pots, raised beds, fruiting crops, fruit trees, vines and general garden use. | Hydroponics, coco/coir, fertigation, intensive growing systems and seedlings under controlled feeding programs. |
| Nutrition style | Complete liquid feed with key nutrients, trace elements and natural inputs to support general seedling and plant health. | Two-part mineral nutrient system designed to keep important elements separated until dilution, helping maintain nutrient availability and stability. |
| Control level | Moderate control. Great for regular seedling and garden feeding without overcomplication. | Higher control. Better suited to growers monitoring plant response, growth stage, EC, pH or fertigation programs. |
| Can it be used on lawns? | Yes. Suitable as a secondary use for lawns, grass and turf during active growth. | Not the first choice for general lawn feeding. Better suited to controlled growing systems. |
| Simple recommendation | Choose ProBase+ if you want an easy complete liquid fertiliser for vegetable seedlings, edible gardens and everyday growing. | Choose A&B Nutrients if you want a more controlled two-part feeding system for hydroponics, coco/coir or intensive production. |
Which One Should You Choose?
Choose ProBase+ Complete Liquid Fertiliser if you want a simple, complete, grower-style liquid feed for vegetable seedlings, herbs, edible plants, pots, raised beds and general garden use. It is the easier option for customers who want better growth without needing a technical feeding program.
Choose QPS A&B Nutrients if you are growing in hydroponics, coco/coir, fertigation systems or want more control over plant nutrition. A&B is better suited to growers who are comfortable following a structured feeding program and adjusting rates based on plant growth and crop needs.
Both products have a place. ProBase+ is about simple, versatile seedling and garden feeding. A&B Nutrients are about controlled, technical nutrition.
Growing vegetable seedlings or edible plants? Go ProBase+.
Running a controlled hydroponic-style system? Go A&B.
Final Word
ProBase+ Complete Liquid Fertiliser is a grower-style feeding option now unlocked for QPS customers and clients. It is designed first for vegetable seedling growers and edible plant lovers, while still being versatile enough for lawns, turf, fruit trees, ornamentals and general garden use.
For vegetable seedlings, ProBase+ is a simple way to support stronger growth, better colour, healthier establishment and more consistent feeding. For customers who want to grow like the pros without overcomplicating their routine, ProBase+ is the easy place to start.
The secret is out. Better feed. Stronger seedlings. Better growth. Better plants.