Alstroemeria in February

Remember those happy alstroemeria dancing in their rainbow colours in the summer breeze only a few months ago?

Now all is a-slumber in your wintery garden. Everything covered in white icy fluff.

You may have last seen your Alstroemeria blooming away up until October which feels like an age ago now. But thanks to the long flowering season you can expect to see some flowers popping up come March/April already, so it's not much longer to wait now.

But perhaps you’re wondering what your alstroemeria are up to while they’re not busy flowering and if there’s anything you need to do to help them along.

Well, with alstroemeria’s being perennials, dying back in winter, they need a period of cold weather in order to stimulate shoot growth, so you can rest assured they are doing their thing underground.

Let’s look at what you can do to support your alstroemeria during this period of hibernation so they can spring exuberantly out the ground when the time is right!

Alstroe in garden beds

Although the alstroemeria varieties we grow are garden winter hardy, withstanding soil temperatures as cold as -10°C, it is a good idea to mulch new plants well for the first couple of winters while they are establishing. This ensures they are protected until they have grown up enough to stand on their own two feet (or many roots).

It is best to apply a thick layer of leafy or peat-free mulch in Autumn. Read about our peat-free policy here. Composted bark is also a good option. Make sure to leave about a 5cm gap between mulch and stem otherwise they may get a bad case of root rot.

Alstroe in containers

Keep your potted alstroemeria indoors after September when the frost could start appearing outdoors.

You can move them to a location that is free of frost for the winter, such as a sheltered porch or greenhouse. This is because the roots are more exposed to low temperatures when in pots than they are growing in the ground.

Amazing how in spite of being seemingly more exposed, being in the garden bed is actually warmer. Just shows – nature knows best!

Alstroemeria have tuberous, fleshy roots so they require sheltering and good drainage. This will prevent the compost getting too soggy with the winter rains which can also cause the dreaded root rot.

Water lightly but frequently.  The compost should dry out on the surface between watering.

When Spring springs

If you take good care of your alstroemeria in these ways, when the days start lengthening those shoots will start flowering prolifically.

They are quite hungry plants, especially if kept in a container, so remember to feed with a high potash, liquid feed regularly in the growing season. We also use a slow release feed - our Alstroemeria Spring Feed - which can be applied at the beginning of the growing season (March) to give a steady feed throughout the early part of the growing season.

Once flowering begins, mature hybrids will keep producing flowering shoots until the soil temperature rises above 15°C for extended periods.

What varieties do you have in your garden that you’re looking forward to seeing in flower again?

Alstroemeria – An Introduction

These lovelies just epitomise joy, don’t you think?

They most definitely are the party animals of the garden with their happy faces dressed up in a roar of delightful hues from white, yellow, orange and bronze, to pink, red and purple as well as bi-coloured. They just love blooming, jiving about with their flowers throughout the whole of spring and summer. From May to September!

Despite their lily-like appearance and being known as Peruvian Lily and Lily of the Incas, alstroemeria are not true lilies. They belong to the Alstroemeriaceae family and grow wild in South America under extremely varied conditions - from high up in the snow-capped Andes down into the damp forests and dry deserts along the coast. Some have become naturalised in the United States, Mexico, Australia, New Zealand, Madeira and the Canary Islands.

First grown in Peru, Brazil and Chile, they were named after Baron Clas Alströmer who collected these seeds from Spain and brought them over to Europe.  Alströmer was a Swedish naturalist and student of the distinguished botanist and classifier Carl Linnaeus. From 1760 to 1764 he traveled throughout Southern Europe, collecting plants for Linnaeus. According to The Linnean Society of London, Alströmer sent a box with a list of plants numbered 1 to 243 from Spain on 6 September 1760.

An interesting and unusual characteristic of Alstroemeria’s leaves is “resupination”. This originates from the Latin word “resupinus” which means "bent back with the face upward". So their leaves twist 180 degrees from the base as they unfurl and what we see as the upper leaf surface is in fact the lower surface.

Alstroemeria is a genus of around 60 species of herbaceous perennials and modern hybrids originating primarily from the Aurea, Ligtu, Pelegrina, Pulchra and Violacea species.

There are more than 200 hybrids and cultivars of Alstroemeria available, some popular varieties being “Apollo”, “Friendship” and “Inticancha ‘Dark Purple’”.

The first new varieties were bred by plant breeder John Goemans, becoming known as 'the father of alstroemeria’. He was the first in the world to grow Alstroemeria commercially under glass, introducing the first Alstroemeria variety specifically intended for glasshouse growing in 1959. He had a whole collection by the mid 1960's leading to Alstroemeria becoming one of the major glasshouse grown cut flower crops in the world today. John Goeman's company 'Parigo' was taken over by Alec White of Primrose Hall Peonies in 2018, where the growing and breeding continues.

They are a popular choice because of their comparatively long vase-life (up to 2 weeks) and have a long, prolific flowering season.

You’d be forgiven for mistaking Alstroemerias for orchids as they can be divided into two main classifications: orchid-type and butterfly-type. This describes their flowering habits.

The orchid-type is mostly used for cut flowers. They have 3-5 months of major flower production in the spring, with little or no flowering during the rest of the year.

The butterfly-type are more suited as potted plants. They will flower for 9-12 months each year, depending on the cultivar and environmental conditions. Butterfly types have shorter growth habits and larger, more open flowers than the orchid-type.

The varieties we sell include the original British bred Parigo, the Colorita (Princess), Inca and Planet series as well as the Inticancha collection. We’ve sorted them into Short, Medium and Tall varieties as well as the types that are best as cut flowers or containers, so you’ll know exactly what to look for depending on your needs.

The short varieties are great at the front of the border and make excellent container or patio grown plants which, if pruned correctly, can flower in the garden from June to November. Medium and tall varieties are excellent flowering plants for garden borders or allotments and will repeat flower from May to November. Tall varieties also make excellent cut flowers.

Which Alstroemeria is your favourite?