Exclusive to Thompson & Morgan, the new cartridge plug system®PAP allows us to grow the large bulk of our mail-order plug plants by a method identical to commercial nurseries.
As the young plants grow from seed, they are captured by a camera, which detects any gaps caused by non-germinating or weaker plants. The machine then inserts a fresh plant, a job which was previously done by hand. The benefits that this brings include healthier plants of the highest quality and with in-built strength from a young age.
Our new cartridge plug system®PAP provides plants with an extra-strong root system, giving them the best start in life. The new, open sided cartridge causes root tips to dehydrate. This is known as 'air-pruning' which encourages the growth of new, lateral fibrous roots. Up to 10 new fibrous roots can appear, meaning better-rooted, stronger plants than ever before!
The slender plastic packaging and layout of the plants also mean that most packages will sail through modern letterboxes, ensuring they arrive as fresh and healthy as possible.
Usually 4-6cm in height from base to tip, mini-plugs require a longer growing-on period, but represent superb value. Some may be supplied as seedlings (such as lobelia), which should not be separated, as they’ll create a better display if planted in clumps.
Supplied in our exclusive cartridge plug system®PAP, the majority of plug plant deliveries will fit through your letterbox, so your plants are delivered as fresh and healthy as the day they left the nursery.
If you’re looking for a larger plant, then these sizes could be for you. These plants will need a shorter period of growing, and offer superb value for money. Many of these larger-sized plants are grown from cuttings, which are taken from premium nursery stock.
Jumbo plugs can be planted straight into baskets or other containers. Plants are usually 8-12cm in height from base to tip, and the plug module could be 3-4cm in diameter, depending on the variety.
We've also redesigned our larger plug size so that these parcels will also fit through most letter boxes, so they're fresher and will arrive sooner just like our smaller plugs. Postiplugs® are versatile, superb value and can be planted straight into baskets and other containers.
Slender young plants, such as carnations and pinks, have a different growing habit and don’t need such a large plug, so we’ve devised the ‘pencil plug’.
Sizes can range from 5cm to 9cm. This refers to the diameter of the top of the pot. These well-established plants are ready to be planted straight out into final positions, as soon as the weather allows.
When buying bulbs, quality is everything. We always supply flowering-size bulbs, which means you’ll grow bigger, better flowers AND there’ll be more of them.
Plants may show little or no sign of top growth. They have been sent in a dormant state which keeps them in the best possible condition, and they will produce new growth in the spring. Can be planted straight out into the garden, as long as the soil is not frozen or waterlogged.
We have our own on-site laboratory where we test the germination of every variety of seed we offer. Seeds are tested twice in a 12 month period to make sure that germination rates have not diminished. If they have, we drop the variety from our range; simple as that!
Our seed packets are carefully packed in padded envelopes to ensure that they arrive undamaged. Our seeds are posted by 2nd class mail and you can usually expect delivery of your seeds 3-5 days from posting.
Bareroot plants are field grown and the soil is removed from the roots prior to packing. They are usually despatched in a dormant state, appearing lifeless, but they are merely resting while the energy is stored in the roots. The plants are ready to come to life once planted and watered. Quite often plants that are supplied as bare roots are more mature and have a better developed root system than pot-grown specimens. As they are less bulky to pack and post, we are able to offer them at very reasonable prices. The plants often look unsightly on arrival, but this is perfectly normal and nothing to be alarmed about.
Root-wrapped plants are generally field grown, and the rootballs are wrapped in plastic or netting prior to postage. Not supplied in pots.
Bulb sizes determine the vigour of the
plants and the number and size of the flowers produced. Wherever
possible, we supply the largest sized bulbs available. Generally, the
bulb size relates to the circumference measured in centimetres, eg 14/16
will have a minimum circumference of 14 cm and a maximum circumference
of 16 cm. Sometimes bulbs are graded I, II or III, I being the top size
bulb. As with all perennial plants, the heights and spreads given in the
symbol are usually after 3-5 years' growth.
Many plants are protected by Plant Breeders' Rights, and when appears in the variety name, this denotes that an application for a plant patent has been submitted. Commercial propagation of these varieties is strictly prohibited.
Packaging Cell-raised and pot-grown plants are normally shipped in blister packs to keep the root systems in place and the foliage protected in transit. This packaging is made from recycled PET and should be recycled after use. Where a pack of plants represents a collection of colours or different varieties, these can be identified by referencing the embossed letters A-F on the outside of the green packaging with the planting guide supplied. Some varieties are supplied with a strip of pre-printed labels that correspond to the embossed letters. These can be detached and stuck onto plastic plant labels or pots for future reference.
Plugs, miniplugs and seedlings are raised from premier-quality seed and are supplied in black modular trays. Seedlings are multi-sown in traditional miniplug trays and can easily be teased apart from the cell. Some cells may contain 3 seedlings. Miniplugs (11/2-21/4") require potting on before they can be acclimatised to outdoor conditions and planted out into beds or containers. A free dibber is supplied to assist with removing miniplugs from their growing cells.
Plug plants (2-3") can be planted direct into their final containers but they must be protected from frost, or potted on into 31/2" (9cm) pots for 4-8 weeks or until the roots are well spread around the side of the pot. Plugs are supplied in trays of 25, 35, 54 or 84 cells depending on the variety. We recommend that you have a supply of pots or trays and compost available prior to your plants arriving.
Our plants get off to the best possible start with the combination of traditional horticultural skills and state of the art greenhouses equipped with computer technology to create the perfect growing environment.
This category covers a range of growing cells including Jiffy, glue plugs and paper pots. Sizes will vary according to the variety, but as a guide plants measure approx 3-5" (8-13cm) from root base to stem tip. Many varieties are raised from seed, unless the plants have been raised from virus-free cuttings, painstakingly hand-prepared by skilled nurserymen. Sometimes we have already nipped out the growing tip to encourage bushier growth and greater flower power.
2" (5cm) mock terracotta pots Many of our perennial plants are supplied in this type of pot. The plants are predominantly over-wintered and have a well-developed root system to give them a head start when planted out.