Guide: Grow Your Own Root Vegetable

Short on space but love root vegetables? Our Quadgrow Root Vegetable Planter is designed with 4x generously sized 18 Litre plant pots, perfect for growing Potatoes, Carrots, Chard, Leeks, Baby Turnips, Beetroot, Onions and more.

Thanks to its 30 Litre SmartReservoir, plants only take water when they need it. Plus they'll be watered up to 14 days, so you can say adios to soggy spuds and forked carrots.

Read our guide and find out what tasty veggies you can grow in this clever planter!.

Quadgrow Root Vegetable Planter

Growing Potatoes

When to Sow/Plant: February-August 
Our Top Picks: Home Guard (First Earlies), Maris Peer (Second Earlies), Rooster, Sante (Maincrop), Vivaldi, Maris Piper (Latecrop)

By pulling water up slowly the Quadgrow Root Veg ensures there are always airgaps in the soil, which fuels more productive growth. Your plants will be bigger, healthier and more resistant to pests. 

How to Grow:

- Begin by chitting your potatoes for 6 weeks.
- Then, plant potatoes around 30cm apart, or between 2 and 5 potatoes per pot if growing in a Quadgrow Root Veg Planter.
- If you want potatoes in time for your Christmas dinner, sow them by the end of the first week in September.

Find out more about growing potatoes in our comprehensive potato growing guide.

When to Harvest:

Harvest from May-December 
Top Tip: Always plan ahead: work out what you want to grow and when you want to grow it for to determine with you start planting. Once you have harvested your spuds, store them in a hessian sack to keep them fresh for longer.

Growing Carrots

When to Sow/Plant:When to Sow/Plant: February - November
Our Top Picks: F1 Maestro, Nantes Early, Autumn King 2, Purple Sun

How to Grow:

- Sow 15-20 carrot seeds per 1 metre row. After 3-4 weeks of sowing, thin plants to 10-15 per row, then start your second row.
- 5-6 weeks after sowing your second row, thin plants to 10-15 per row.
- Carrots thrive in hot conditions. Water every 7-14 days as appropriate

When to Harvest:

Earlies – 12 weeks after sowing. Maincrop – 16 weeks after sowing

Top Tips: If growing late into the year, a frost will make your carrots taste sweeter, so don’t be afraid to leave them a little longer before harvesting.

Growing Leeks

Grow your own Leeks

When to Sow/Plant: April-July

Gardening Angels’ Favourite Varieties: Musselburgh, Neptune, Lyon, Northern Lights

How to Grow: Sow 15-20 leek seeds per 1 metre row.

3-4 weeks after sowing, thin your leeks to 10-15 per row, then start your second row.

5-6 weeks after sowing your second row, thin plants to 10-15 per row.

Keep your leeks well watered over the warm summer months and consider covering with mulch to help them retain water.

When to Harvest: July-October

Gardening Angels’ Top Tips: Watch out for leek moths, these pests love nibbling on your leeks. Make sure you keep your leeks perfectly watered so they grow strong enough to defend themselves.

Growing Onions

Grow your own onions

When to Sow/Plant: March-April

Gardening Angels’ Favourite Varieties: Ailsa Craig, North Holland Bloodred, Sturon

How to Grow: When growing from sets, space sets 10cm apart and gently push into the ground so only the tip of the bulb is showing.

Find more information about growing from seed in our comprehensive onion growing guide.

When to Harvest: July-September (when foliage turns yellow)


Gardening Angels’ Top Tips: Not sure whether to grow from sets or seeds? Growing from seed provides more variety and is more cost effective, whilst growing from sets is a lot easier.

Growing Chard

Grow your own chard

When to Sow/Plant: March-August

Gardening Angels’ Favourite Varieties: Rhubarb Chard, Lucullus, Rainbow Chard

How to Grow: Sow 15-20 seeds per 1 metre row around 2.5cm deep.

Chard seeds will typically produce up to 5 smaller plants, so thin out weaker plants after 2-3 weeks.

When to Harvest: May-October (When leaves reach 15-20cm)

Gardening Angels’ Top Tips: Birds like nothing more than pinching your chard seeds from the ground, so make sure you keep them protected by covering the soil with Horticultural Fleece.

Growing Beetroot

Grow your own Beetroot

When to Sow/Plant: March-July

Gardening Angels’ Favourite Varieties: Boltada, Monetta, Chioggia

How to Grow: Sow 15-20 seeds per 1 metre row.

After 2-3 weeks, when seedlings start showing, thin to 10-12 plants per row.

Water your beetroot every 7-14 days during dry periods.

When to Harvest: June-October

Gardening Angels’ Top Tips: Make the most of your versatile beetroot. In addition to the beetroot itself, you can eat the leaves as part of a fresh salad. Some people even use them for food colouring and medicinal purposes!

Growing Turnips

Grow your own Baby Turnips

When to Sow/Plant: March-July

Gardening Angels’ Favourite Varieties: Hakurei, Purple Top White Globe, Purple Top Milan

How to Grow: Begin by sowing 15-20 seeds per 1 metre row.

After 3-4 weeks of sowing, thin plants to 8-10 per row, then repeat the process for your second row.

These grow best with good access to sunlight.

When to Harvest: June-November (When measuring around 1 inch in diameter)

Gardening Angels’ Top Tips: Baby vegetables pack an intensified flavour due to their small size. By eating them on the day they are picked, you can enjoy the optimum flavour!

Top Tips - Using Quadgrow Root Vegetable Planter

If you are growing root vegetables from seed, make sure you follow these 4 simple steps:

  1. - Use a dibber to create rows before sowing your seeds.
  2. - Gently cover seeds with a fine layer of compost using a compost sieve.
  3. - Firm and level compost with a tamper. This will ensure even germination and remove air pockets.
  4. - Evenly water compost using a watering can with a rose until the compost is moist but not saturated.


If you are growing from plant or have already started seedlings in a Vitopod Heated Propagator, follow these steps to ensure plants are safely transplanted into your Quadgrow Root Veg Planter.

  1. - Make a hole in the compost large enough for your plant.
  2. - Place your plant into the compost. Firm compost down gently around the plant.
  3. - Water compost using a watering can with a rose until the compost is moist but not saturated.


If you have any more questions about growing your own vegetables or what varieties to grow, please feel free to get in touch with our Gardening Angels on 0845 602 3774 or drop us an email on We’re always happy to hear from you.