Lupins are beautiful houseplants that creates colorful spike in the garden when they bloom.
The tell tales of these lupin flowers are tall and showy and can display a wild array of color variants. These fast-growing lupin flowers are usually spotted and can be available as annual and perennial plants.
Lupin growing stages starts from germination and seedling emergence, to growing of leaf, to stem elongation and branching, flowering, and to pod ripening.
This article discusses the various growth stages of lupin plants and how to grow and care for lupin plants to ensure healthy growth of the plants.
Let’s get started!
Lupin Growing Stages
According to Oregon State University Extension Service, “Lupin has three life cycle stages: vegetative phase, floral phase, and the pod and seed growth phase. The rate at which the plant moves through each phase depends on temperature and day length.”
Lupins grows better in USDA hardiness zones 4 through 8. It’s best to plant lupin in the late spring or early fall for winter germination, meaning that the flowers will bloom between late spring and mid-summer. You can also plant them in the early spring for later bloom times.
See Also: Different Sunflower Growing Stages
How to Care For Lupin Plants
For lupins to grow healthy, you will need specific requirements, which are listed below:
1. Light Requirements
Lupin plants need about six hours of sun a day at least for them to bloom properly. So although they can be grown in partial shades, their flowering wouldn’t be as organized and as much as if it was grown in full sun.
In hot climates, the best thing for you to do is put it under partial shade because if left under the scorching sun for too long, it might affect its growth and also lead to the drying up of its leaves.
2. Soil Type
Lupin plants work best with organic-rich soils with a sharp drainage system. They prefer slightly acidic soil to neutral soil, and they can also grow in very acidic soil conditions, but they don’t do well in alkaline soils.
3. Watering Needs
When watering your lupin plants, you should do it regularly ad not just when it is dry; also, lupin plants do not do well in soggy soils as it can lead to root rot. So, in hotter climates, water more, and when it is rainfall, you can reduce the amount of water you apply to these plants.
4. Temperature And Humidity
Lupin plants do not do well in sweltering summers; instead, they prefer locations with a slight cool breeze during the summer, and that is one reason why this plant would not do well in the southern united states.
If you find yourself in areas with a scorching climate, you would want to layer a bit of mulch around the lupins to retain soil moisture.
Lupins do not generally need fertilizers because they can encourage excess foliage growth. Therefore, you won’t need fertilizers if you follow the necessary growing requirements for this plant. However, you can use an acidifying fertilizer to lower the soil pH of alkaline soil.
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Growing Lupins From Seeds
It is more encouraging to start growing your lupins from seeds as it is more economical to get a flower garden the following season.
In addition, the lupin plants are among the easiest plants to grow from seeds, and you shouldn’t worry about them not blooming immediately. It is expected o start blooming in its second year.
Lupin plants have a potent seed coat, so it would be best for you to soak these seeds in water overnight before planting.
These plants are usually planted outside under the sun. You should remember that these lupin plants have a long tap root, so transplanting won’t be easy after being appropriately plated; you should expect germination between 14-30 days.
Pest And Diseases
Lupin plants are susceptible to pests like aphids, slugs, and snails during the spring. You can respond to these pests with horticultural oils and pesticides. Some diseases common with lupins are brown patches that remove the plants’ leaves and allow them to generate spores.
Frequently Asked Questions
How Long Does It Take for Lupins to Grow?
You should notice your lupin seeds growing 10-15 days after planting. The reason is that Lupin plants can germinate in a wide range of temperatures, and the best is about 15-degree c to 20 degrees c. If you are not sure about the temperature, anywhere warm would do.
How Long Does It Take for Lupin to Flower?
They would bloom for about two months from a spring sowing or around early summer from fall sown plants. You can find this plant around western northern America and eastern Quebec.
Does Lupin Multiply?
Yes, lupins are known for their ability to reproduce extensively. These lupins produce seeds that would reproduce and produce more flowers the following year if you do not remove them from the growing lupines.
Ensure that you plant your lupines in average and rich soils for you to be able to utilize them properly.
What Do You Do to Your Lupins When They Have Just Finished Flowering?
When your lupins have finished flowering, you should deadhead lupins to prevent them from producing a lot of seeds. After you have cut it off, it would take some time to heal. You should ensure that you keep the vigor in the parent plant and deadhead as the flowers fade.
Can Lupines Grow in Pots?
Yes, they can. You can grow your lupin plants in flower pots but ensure that they get adequate lightening so they do not die off and when planting them in pots, consider using more extensive posts because they grow tremendous and smaller ones won’t work.
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How Do I Deadhead Lupins?
You would need a pair of shears, secateurs, or a sharp knife to do this. You should take your sharp knife or shears and slide them down from the stem, and all the dead flowers are sure to come off.
Some people remove the dead flowers from the spike from the bottom up, but this is more labor-intensive than just removing the spikes. Some people do not do this because it looks like it takes a lot of time, but when it is done, you will enjoy the outlook of your plant.
When you deadhead your plant, it will concentrate on growing new blooms as this is the only way you can continue with the seed creation process. You can always repeat this process when the need arises, which is the best way to improve the flowering season by a month.