How Long Do Lupins Flower For?

How Long Do Lupins Flower For?

If you are currently enjoying some gorgeous lupin blooms in your garden then you will have one prominent question on your mind, how long do lupins flower for? Then inevitably you will think, can I make them flower for longer?

I’m sad to say that Lupins are short flowering plants. The flowering spikes are fantastic but they don’t like to hang around. They’re here for a good time, not a long time.

Lupins normally only flower for 2-3 short weeks before quickly turning to seed. There are however a few steps to can take to prolong the bloom.

My Lupins Just Coming Into Flower
My Lupins Just Coming Into Flower

How To Make Lupins Flower For Longer

So as I said, they are short-lived flowers. But don’t despair just yet, there are still steps you can take to prolong your lupin’s magnificent display. Read on to find out how.

Cutting the seed pods

This is a tactic I have recently started employing with my own lupins. As the flowers die they will inevitably turn to seed pods, as far as the best display is concerned this is far from ideal. So you can begin to cut these pods off as soon as they appear.

They will start at the bottom of the spike and work their way upward. If you begin to remove the individual pods as soon as they appear the pant will put more of its energy into new flowers rather than developing seeds.

This is a lot of effort though and you really need to be in your garden every day to be able to keep on top of it. A lot of people will be better off just deadheading an entire flower spike at once when it has started to turn to seed.

Deadheading the spikes

Once your spike is completely done you should deadhead it. This way you will often find you get a second bloom from your lupins. While often not as spectacular as your first bloom it is still well worth the effort. The second bloom of lupin is often smaller than the first but still beautiful in its own right.

I have a video all about deadheading lupins which you can watch below.

In truth, deadheading lupins is a simple task. Just snip the spent flower spikes off at their base and get rid of them, either into the compost pile or into the bin.

Once the flower spikes have been removed then your lupin will put its effort into a second flush of flowers. The plant wants to reproduce by creating and spreading seeds.

By deadheading the lupin we have prevented it from fulfilling this desire, so it tries again. This means we get to enjoy more flowers.

A quick note on secondary lupin flowers, they are never as big or as nice as the initial spikes, but more flowers are always welcome in my garden!

Secondary Flowers On My Lupins
Secondary Flowers On My Lupins

You can see all of the secondary flowers on my lupins above. This plant has been regularly deadheaded and as a result, it has tonnes of smaller secondary blooms.

You can see they are nowhere near as large as the initial spikes, the last of which are just starting to fade, but they still look lovely.

Planting in full sun

Lupins love being in full sun, and the more sunlight they have the more flowers they will produce. Lots of sunlight can also encourage the second bloom to be bigger and better.

Lupins in a border
Lupins in a border