Step-By-Step Guide to Potting Up And Caring For Your Pond Plant
Each plant variety you order from us will arrive wrapped in damp newspaper and packed in a plastic bag or tub with an identifying label. Unpack your plant as soon as possible after arrival by cutting off the plastic outer covering, carefully easing the plant out, and removing the newspaper (taking care to keep the right label with the right plant).
Plants that have arrived bare root should ideally be planted up immediately. If this is not possible, they should still be unwrapped and placed in a bucket of water in a cool but frost-free place out of direct sunlight.
Plants that have arrived in pots should be stood in a bucket or tray of water until you can pot them on. When you pot them on, ease off the existing pot. If this is difficult, you may find it easier if you snip the pot down the sides with scissors to open it up, and then take it off like that. Be careful if doing this – cut pot edges are surprisingly sharp. Old plant pots can be used for something else or put in the general rubbish bin.
You can simply put the plant straight in your pond in the pot it came in if you wish, but we would still recommend that you pot it on into a larger container whenever you conveniently can for the best result. In most cases, the pot size we use to send them in is not ideal for the plant in the long term.
Occasionally, you may want to grow plants directly in the ground in an area under water too deep, or too far from the bank, to easily dig a hole. In this case, you can place the plant in a ‘bag’ made from a square of hessian, together with some soil if necessary, and a medium-sized stone as a weight. Draw together the ends of the hessian to create the ‘bag’ and tie them loosely with biodegradable string so that the stems of the crown are emerging from the top. Drop the bag into the water where you want the plant to be, making sure it will not be too deep for the plant to thrive. Keep an eye out to ensure the plants are not disturbed by fish or water birds while they gradually root into the pond.
Do ensure that whatever pot you choose gives your plants enough room. Many aquatic plants, and waterlilies in particular, need the space for a large root area. Do not place these in small or cramped pots if you want them to perform and flower well. Small marginal plants, oxygenators, and miniature waterlilies can be started in pots of around 1 litre capacity, while larger marginal plants and other waterlilies are best started in pots of 2 to 5 litre capacity. We generally recommend that each variety of plant is potted individually, so that they are not competing for space in one pot. You can find more specific information on each plant's page on our website.
Pot the plant in a heavy, loamy soil. This is a soil which is composed of sand, silt and clay, rather than being a peat-based soil (which will tend to float and is not nourishing enough for the plant in the long term). If you are potting waterlilies or deep-water plants such as Orontiums you can even use a heavy clay soil. Special aquatic soil is available in most garden centres and this works well. Alternatively, normal garden soil from somewhere like a flowerbed, that has been raked or sieved to make it workable, can be used. Do not use standard potting compost or any garden soil that has recently been fertilised, as this can cause excessive algae and/or green water in the pond.
When you start potting up, firstly make sure that you have as many pots as you need, of the appropriate sizes, and any hessian liners that you need. Ensure you have enough soil for all your pots. You might also want to have some gravel to hand – a thin layer of fine, washed gravel over the top of the soil will improve the look of the plant, and help to prevent fish or birds from digging it up. A trowel or scoop to pour the soil into the pot is also useful, as it is easier than using your hand.
If using a hessian liner, start by placing this in the pot and checking it is big enough to cover the inside. Now fill approximately one third of your pot with soil, and press it down very firmly. Fold and smooth the hessian liner as necessary as the soil goes in. Place the plant in the pot; if it is a bare-root plant, spread its roots out with your hand. Hold the plant around its root ball or, for bare-root plants, at the base of the growing point (the growing point is the bit where the shoots and leaves emerge, also called the crown). Then carefully fill the rest of the pot with soil, firming it up as you go, and continuing to fold and smooth the liner, if using. Leave a small space at the top of the pot for the layer of gravel, if you are adding this. With bare-root plants, make sure the plant’s growing point is just above the soil level when you have finished.
Add the layer of gravel to finish off, if desired. Cut off any excess pot liner, if using this.
Sprinkle the plant with water using a watering can or similar until the soil is thoroughly soaked through. If you do not do this the soil may float away when you put the plant in the pond.
You are now ready to place the plant in your pond. The label will specify a minimum and maximum depth; the plant will grow best at the shallowest end of this range, as it will get the most light. Similarly, remember that most flowering pond plants will flower best when placed in a sunny spot.
If the weather is hot when the plant is first planted up and it begins to wilt, simply trim the wilting foliage back. This will not harm the plant.