FlowGrow
FlowGrow Hydroponic Tower | 12 Layer | 36 Plant Sites
FlowGrow Hydroponic Tower | 12 Layer | 36 Plant Sites
SKU:FG-TWR12
Tower Only includes the tower setup. Starter Kit adds the growing essentials and saves $10.
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Once you start growing, it’s surprising how many things you want to try. More salad greens, fresh herbs for cooking, maybe even a few tomatoes.
The FlowGrow 12 Layer hydroponic tower offers 36 planting sites in a compact footprint, giving enthusiastic home growers and larger households more room to grow a varied harvest. Ideal for bright indoor spaces, sunny decks and sheltered balcony’s and outdoor areas.
Want even more room to grow? Add a 3 Layer Tower Extension to take your tower to 15 layers and 45 planting sites, without replacing the system you already have.
Assembly takes around 20 minutes, with helpful growing guides and friendly New Zealand support whenever you need it.
Free New Zealand shipping is included on all FlowGrow towers and tower starter bundles.
What's Included
What's Included
• FlowGrow 12 Layer Tower with 36 planting sites
• Modular stackable tower sections
• 20 L reservoir base and lid
• Internal recirculating water system
• Low-voltage submersible pump
• Timer and 12V power adaptor
• Water level gauge and nutrient funnel
• Wheels (set of 4)
• Plant support sponges
• Quick assembly guide
Everything needed to assemble and start your tower is included.
From box to growing
From box to growing
Designed for everyday growing with simple ongoing care.
- Tool-free assembly
- Add water, nutrients and your plants
- Timer manages the watering cycle
- Top up the reservoir as plants grow
- Refresh reservoir water every 2–3 weeks
Then grow, harvest and repeat.
For step-by-step setup, visit the FlowGrow Setup Guide
Specs & sizing
Specs & sizing
Footprint
40.5 cm × 40.5 cm
Height
136 cm
Planting Sites
36
Reservoir Capacity
20 L
Material
Food-grade polypropylene (PP)
Pump
12V DC submersible pump
Power Supply
12V adaptor included
Digital Timer
Inline loop timer (DC 12–24V, ≤3A)
Placement
Indoor or sheltered outdoor use
Shipping & Delivery
Shipping & Delivery
Free NZ shipping on all FlowGrow towers and tower starter bundles.
Standard NZ shipping applies to standalone Starter Kits, nutrients, accessories, growing essentials, and replacement parts.
Orders are shipped from New Zealand. Standard delivery is usually 3–5 business days. Tracking details are provided once your order is on its way.
Rural delivery and busy courier periods may take longer.
Questions about your order? Contact us
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NOW AVAILABLE IN STORE
See FlowGrow for yourself.

Prefer to see a tower in person?
Visit Mitre 10 MEGA Nelson.
The freedom to grow more
There’s something rewarding about always having something ready to harvest. Fresh herbs for dinner, leafy greens for lunch, and room to try something new whenever inspiration strikes.
The FlowGrow 12 Layer Tower gives you the freedom to grow more of what you love while keeping the same compact footprint that makes every FlowGrow tower easy to live with.
Whether you’re harvesting for the family, experimenting with new varieties or simply enjoying the rhythm of growing your own food, there’s always something waiting to be picked.
How FlowGrow works
FlowGrow is a recirculating hydroponic tower.
Add water and nutrients to the reservoir. The pump lifts nutrient water to the Flow Cap, where it flows gently past the roots before returning to the reservoir to circulate again.
The timer manages the watering cycle automatically.
What can you grow?
FlowGrow works well for herbs, leafy greens, strawberries, and other compact plants suited to home hydroponic growing.
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Leafy greens
Lettuce, Mesclun mix, spinach, rocket
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Herbs
Basil, mint, parsley, coriander, thyme, chives
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Compact veg
Cherry tomatoes, chillies, small peppers
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Other favourites
Strawberries and edible flowers
Start Growing Straight Away
Add the Starter Kit for $39 when purchased with your tower.
(Save $10 compared with purchasing separately)
Starter Kit includes:
- Germination tray
- Rockwool cubes 50
- Net pots matched to FlowGrow towers
- Grow nutrients (Part A & B – 200 ml each)
- Measuring cup
- pH test strips
- FlowGrow Easy Start Guide
Compare Tower Sizes
Each FlowGrow tower works the same way. Choose the size that best fits your space, your household and how much you want to grow.
A little room to grow
6 Layer Tower
18 planting sites for kitchen herbs, salad leaves and a few favourites.
Height: 83 cm
Footprint: 40.5 × 40.5 cm
Tower only
View 6 Layer Tower
Room for more variety
9 Layer Tower
27 planting sites for more variety, with the same compact footprint.
Height: 110 cm
Footprint: 40.5 × 40.5 cm
Tower only
View 9 Layer Tower
You’re viewing this tower
12 Layer Tower
36 planting sites for more of your favourite things to grow.
Height: 136 cm
Footprint: 40.5 × 40.5 cm
Tower only
Frequently Asked Questions
A few helpful things to know
Is this a good option if I’ve never grown anything before?
Yes. FlowGrow is designed to feel approachable for first-time growers while still supporting long-term growing as your confidence builds.
Many people start with herbs and leafy greens before experimenting with other plants over time.
Where should I place it?
FlowGrow grows best in a bright indoor position or sheltered outdoor area with good natural light.
A sunny window, covered patio, deck, or balcony can all work well depending on conditions.
Can I use it indoors?
Yes, provided the tower receives enough natural sunlight. Bright indoor spaces tend to work best for herbs and leafy greens.
If natural light is limited, compatible grow lights may also help support growth.
Does the tower need a grow light?
Not always. FlowGrow grows best in a bright location. A grow light is only recommended when there isn't enough natural light available, such as indoors away from a sunny window. Towers placed in a bright indoor position or a sheltered outdoor location may not need additional lighting.
How noisy is the pump?
The pump runs quietly and is designed for home environments. Most people notice only the gentle sound of flowing water, similar to a small water feature.
How much power does the system use?
The FlowGrow tower uses a low-voltage 12V DC pump (6W), powered by the included 12V adaptor. The automatic timer controls the watering cycle, so the pump only runs for short intervals throughout the day, keeping electricity use low.
What can I grow in it?
Leafy greens, herbs, strawberries, and many compact vegetables all grow well in FlowGrow when light conditions are suitable.
Can I extend my tower later?
Yes. FlowGrow extension sections are available separately if you’d like to expand your growing space over time.
Ready to grow your own?
Start with the FlowGrow 12 Layer Tower and see what you can grow at home.
Continue your growing journey
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Keep Growing
Top up nutrients, growing media, and essentials to keep your tower ready...
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Helpful Growing Extras
pH strips, EC meters, and measuring tools for growers who want a...
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Growing Essentials
Seed-starting media, net pots, nutrients, and measuring tools. Everything you need to...