Independent comparisons. We may earn from shop links. More info

Best wooden window box: compost, a light box, or a vase

Updated: October 2026

A star rating on amazon.co.uk often belongs to the wrong wooden object. You might want compost on a patio, a light herb box, or stems on a table, and those are three buys. This shortlist says which listing in this set is the best wooden window box for each job, and who should skip it. The Products Compared editorial team used the amazon.co.uk listings saved on 15 October 2026. There is no laboratory test. The full table is on the [wooden window box comparison](/hub/door-and-window-security/wood-window-box).

A star rating on amazon.co.uk often belongs to the wrong wooden object. You might want compost on a patio, a light herb box, or stems on a table, and those are three buys.

Our top picks

NUPTIO Nuptio white window boxes

Best overall

NUPTIO Nuptio white window boxes
6.4/10about £19.98
View offer
Hortico Hortico 76 cm window box

Rank 2

Hortico Hortico 76 cm window box
8.8/10about £26.99
View offer
GROWSCAPE Growscape buffalo-brown planter

Alternative

GROWSCAPE Growscape buffalo-brown planter
4.8/10about £13.21
View offer
On this page
  1. 1.A compost trough, if you will line it
  2. 2.A light box with a liner claimed
  3. 3.Shallow trays and a vase-ranked pair
  4. 4.What the star rating does not decide

A compost trough, if you will line it

For compost, the top pick is the Hortico 76 cm trough, and only if you will line the slats. It is about £26.99, 76 × 23 × 15 cm, 24.5 litres and 3.5 kg empty, fully assembled, with a slatted base and no liner. The attribute says pine. The bullet says stained Scandinavian redwood, which here means pine, not a durability class. Skip it if you need the liner in the pack, a stated Use Class, or more than 15 cm of depth. The pair is about £38.78 for two boxes at 51 × 18 × 15 cm, still slatted, with 14.5 litres on the pair title. Take it for two floor-standing troughs. How to cover the slats is on the lining page.

A light box with a liner claimed

Growscape is the light box, not the compost winner. It is about £13.21, 4.1 from 271 ratings and 431 g, with a handle. The bullet says a removable plastic liner. Drainage is No, the rank is cachepots, and the use lines disagree. It prints 15.2 × 40.6 × 12.7 cm beside 16 × 6 × 5 cm and 10 gallons. Only three texts in the file are from the UK: a light box that was fine at the price, a second unit with no liner, a weak liner, and rot after months. Take it if you will check the liner on arrival. Compost stays on the how to plant page.
NUPTIO Nuptio white window boxes

Testsieger

NUPTIO Nuptio white window boxes
6.4/10about £19.98
View offer

Shallow trays and a vase-ranked pair

Nuptio is the decorative pair: two washed-white boxes, each 30 × 13 × 8 cm, about £19.98, freestanding, no liner and no drainage. It is 4.6 from 195 ratings and the rank is vases. It is the best value for that table job, about £9.99 a box. Tbest is about £10.73 at 4 × 8.9 × 4 cm. Under about 500 g and about 8 cm high, treat the piece as decorative. Kisangel is about £27.45 at about 425 g and still is not a 15 cm trough.

What the star rating does not decide

Read 4.6 from 100 ratings once. The 76 cm Hortico and the 51 cm pair share that star line and the same UK review text. It is one write-up, not two trials. None states BS 8417. If you will line the slats and the box sits on the ground, the 76 cm Hortico is the top pick. If you want two boxes for a table, Nuptio is the best value. The order of those checks is on the buying guide. A qualifying amazon.co.uk purchase can earn a commission at no extra cost to you.

Common questions

Which wooden window box in this set is for compost, and which is only for show?
Compost, after you line the slats, means the Hortico troughs: the 76 cm box at 24.5 litres, or the 51 cm pair with 14.5 litres on the pair listing. Both are about 15 cm high. Nuptio, at 8 cm and ranked under vases, is for table flowers. Imports under about 500 g, and Tbest at 4 × 8.9 × 4 cm, are not soil troughs.
Is the Hortico 76 cm box the one to pick for a patio trough?
Yes, for a patio or the ground, if you will add a liner and you accept 15 cm rather than a deeper perennial box. It is about £26.99, fully assembled and 3.5 kg empty. UK reviews describe a sturdy box that loses soil through the slats until it is lined. Skip it if you need the liner included, a certified treatment class, or a fixing for a uPVC sill.
When is the 51 cm pair the better Hortico, and when should you skip both?
Take the pair for two floor-standing boxes of 51 cm rather than one 76 cm trough. It is about £38.78, still slatted and unlined, and the 14.5 litre line stays on the pair title. Skip both if you will not line an open base, if you need the box under about 500 g, or if a garden article’s 20 cm or 30 cm depth is what you actually need.
Does 4.1 from 271 ratings make the Growscape planter the best buy?
No. The count is the largest here, and the UK texts in the file are three. They include a missing liner, a weak liner and rot after months, as well as a light box that suited an indoor job. The size lines contradict, including 10 gallons, and drainage is No. It is not the best wooden window box for compost.
Can I use a Nuptio box, or a shallow high-star box, as a soil window box?
Nuptio is 30 × 13 × 8 cm, with no liner and no drainage, and the UK texts describe table arrangements. Tomotato’s single 5.0 has no review text, no holes and an indoor line. Stand a pot inside a shallow shell if you want, and do not fill these as troughs.

Related pages

Plastic trough or wooden window box

Wooden window boxes

Wooden window box on a balcony or in a rented flat

Wooden window box buying guide: height, liner, size

How to plant a wooden window box without losing soil

How to line a slatted wooden window box for compost

Sources

Public sources used for this comparison. Prices, stars and review counts are amazon.co.uk figures from the listing extracts dated 15 October 2026.

  1. Consumer Rights Act 2015, sections 9 to 11 (retrieved 15 October 2026)
  2. Creosote Regulations 2003 (retrieved 15 October 2026)
  3. HSE biocides overview (retrieved 15 October 2026)
  4. Wood Protection Association, Use Class 3 (retrieved 15 October 2026)
  5. RHS: how to plant up a container (retrieved 15 October 2026)
  6. RHS: roof gardens and balconies (retrieved 15 October 2026)
  7. GOV.UK: how to rent a safe home (retrieved 15 October 2026)
  8. Inveka: drilling into uPVC windows (retrieved 15 October 2026)