How to plant up a container / RHS Gardening (2024)

  • Cover large drainage holes

    If your pot has drainage holes of more than about 2.5cm (1in) in diameter, place some stones or crocks (broken terracotta) over them to prevent compost falling through. If drainage holes are small, there is no need to cover them.

    How to plant up a container / RHS Gardening (1)

  • Place compost inyourcontainer

    Fill to a level where the rootballs of your plants will sit within the container (ideally about 5cm (2in) below the rim) when sat atop the compost, then lightly firm it down.

  • Remove plants from their nursery pots and position them in the container

    Consider what angles the container will be viewed from – for pots against a wall or fence you will typically want taller plants at the back, for free-standing containers viewed from all sides you might have taller plants in the centre. Bear in mind that trees and shrubs often have a ‘front face’ or ‘best side’.

    How to plant up a container / RHS Gardening (3)

  • Fill the gaps around your plants

    Add peat-free compost around the plants, gently firming it down to fill any spaces. A slightgap between the top of the compost and the top of the container will prevent compost spilling out when watering.

    How to plant up a container / RHS Gardening (4)

  • Water well

    Water slowly and thoroughly to soak the compost. Usea rose on the end of a watering can or a hose with a fine spray to avoiddisturbing the compost. If any leaves got compost on them during planting, wash it off with a gentle spray of water.

    How to plant up a container / RHS Gardening (5)

  • Cover bare compost

    Add a layer of mulch to the top of the compost if you want to. This works well for single trees or shrubs planted in pots, where lots of bare compost is showing. A layer of gravel, stones or bark chip will help conserve moisture, suppress weeds and look attractive.

  • How to plant up a container / RHS Gardening (2024)

    FAQs

    How to plant up a container / RHS Gardening? ›

    You can assemble the container in any way you see fit, but it's helpful to plant the biggest plant, the thriller, first so you don't have to make room for it later. Then add the fillers around the base of the thriller, followed by the spillers trailing over the edge of the pots.

    How do you layout a garden container? ›

    You can assemble the container in any way you see fit, but it's helpful to plant the biggest plant, the thriller, first so you don't have to make room for it later. Then add the fillers around the base of the thriller, followed by the spillers trailing over the edge of the pots.

    What is the rule of thumb for container gardening? ›

    The container must take up either one-third or two-thirds of the eventual total height of the container and the plants together. And the plants must take up the remaining two-thirds or one-third, respectively, of the planting.

    How do I arrange my garden pots? ›

    As plants mature and fill in, spread pots apart. Keep your container garden looking its best by moving plants in peak bloom to the forefront of the garden or elevating them above their neighbors. Likewise, slip plants past their prime to less prominent positions.

    How to group container gardens together? ›

    Dan treats the pot garden as a 'theatre'. 'Place the taller pots and plants at the back and the smaller ones at the front,' he says. Group pots with larger plants at the back and smaller ones at the front.

    What do you put in the bottom of a container garden? ›

    One of the best things to put at the bottom of a planter for drainage is broken pieces of pot. You can use any unwanted plant pots or chipped crockery for this – simply smash them up into small to medium-sized pieces. Adding a layer of broken pieces of pot like this will prevent compost loss out of the drainage holes.

    How many plants should you put in a container? ›

    Generally, using three or four plants in 10 to 12-inch planters, four to six plants in 14 to 16-inch planters and six to eight plants in 16 to 20-inch planters will fill out containers nicely while allowing room for the plants to grow without excessive crowding.

    What is a disadvantage to container gardening? ›

    #1: Container Gardens Need to Be Watered More Often

    With such a limited soil volume, plants in containers need frequent watering. It is critical to check your soil weekly to determine hydration levels. Keep an eye open for the following telltale signs: Shriveled, brittle, or dead leaves.

    What is the best mix for container gardening? ›

    2 parts compost. 2 parts peat moss. 1 part perlite or vermiculite.

    How do you position plants in pots? ›

    Center the core plant slightly toward the back of the pot. Add more soil and time-release fertilizer to within 8 inches of the top of the container. Arrange the filler plants around the core plant, placing them as close together as possible and adding soil to secure each plant in place.

    What do you put in the bottom of a planter to take up the space? ›

    You can use rocks, pieces of concrete or bricks, gravel, and/or pebbles. The benefit of using these types of rubble to fill your planter is that they have some weight to them. Weight can help anchor a tall planter that may be prone to tipping over.

    How to arrange plants in a planter box? ›

    You want to have your tallest element (your focal) in the centre of your planter and get lower with the plants as you work your way closer to the perimeter of the planter.

    How do you space plants in containers? ›

    Generally, using three or four plants in 10 to 12-inch planters, four to six plants in 14 to 16-inch planters and six to eight plants in 16 to 20-inch planters will fill out containers nicely while allowing room for the plants to grow without excessive crowding.

    Top Articles
    Latest Posts
    Article information

    Author: Delena Feil

    Last Updated:

    Views: 6394

    Rating: 4.4 / 5 (45 voted)

    Reviews: 92% of readers found this page helpful

    Author information

    Name: Delena Feil

    Birthday: 1998-08-29

    Address: 747 Lubowitz Run, Sidmouth, HI 90646-5543

    Phone: +99513241752844

    Job: Design Supervisor

    Hobby: Digital arts, Lacemaking, Air sports, Running, Scouting, Shooting, Puzzles

    Introduction: My name is Delena Feil, I am a clean, splendid, calm, fancy, jolly, bright, faithful person who loves writing and wants to share my knowledge and understanding with you.