Laguna Sky Blue Lobelia Growth and Care Guide

Laguna Sky Blue Lobelia, as the name suggests, is a delicate-looking annual plant that blooms plenty of light-blue flowers. A type of Lobelia erinus, this plant is the perfect choice to add a summer vibe to your garden and plenty of colors. The contrast with red or yellow flowering plants will be stunning.

You can use this versatile plant for many purposes: regardless of how you decide to plant it, you will always get beautiful results. Whether you grow it in hanging pots around your property (or even indoors, if you like) or use it as a ground cover, this easy-to-grow plant won’t disappoint you.

You can recognize this variety of Lobelia by looking at its color. The blue is less intense than with types such as Sapphire but still bright and vivid. If you are familiar with Lobelia, you shouldn’t be surprised at how easy it is to grow them.

However, if you aren’t, don’t worry: it isn’t much you have to do for them to thrive. Still, even if these plants are relatively low-maintenance, you must learn about their basic requirements. Ensure they get the nutrients, light, and water they need to have thriving (and stunning) plants in your garden.

To learn more about Laguna Sky Blue Lobelia, keep reading this essential guide we put together for you. Hopefully, the information we included here will help you identify this variety over other types of Lobelia and help you take proper care of this plant.


Laguna Sky Blue Lobelia has similar growth patterns to other Lobelias: it grows tiny flowers on branches that cascade from the plant’s center. For this reason, it performs excellently in hanging baskets or window boxes, especially if you are trying to add more color to your property.

As with most Lobelias, this plant loves warm climates and doesn’t do well at low temperatures. You can grow it outdoors in USDA hardiness zones between 9 and 11.

This variety doesn’t grow more than 12 inches in height and 24 in width: if you need to fill up some empty spaces around your garden with something easy to grow, consider getting Sky Blue Lobelia!

Also, if you don’t have much space in your garden, you can plant this variety as a hedge or around borders!

Laguna Sky Blue Lobelia Care

Laguna Sky Blue Lobelia

Sunlight and temperature

This plant will thrive even without your help, provided that you plant it in well-draining soil under partial sun. This variety is more tolerant to heat than other Lobelias and usually blooms on warm days when night temperatures do not go above 75F.

In warm regions, you can grow Laguna Blue Sky as a perennial. However, you might be disappointed as these plants usually die when cool fall comes. The good thing is that you can easily replace it with a new plant: Lobelias grow so fast that you won’t even notice the difference!

Watering requirements

The plant needs average water. If your region is dry, you might have to water your plant frequently. Otherwise, if rain falls regularly, it will do more than enough to keep your plant moist.

Remember that your plant should never be wet! If you plant it in hanging baskets, be careful when watering your plant: better do so more frequently and less abundantly to avoid overwatering your plants and causing roots to rot. Only water your plants when the soil feels dry to prevent problems.

When planting your Laguna Sky Blue as ground covers, consider adding mulch around them to improve water retention and increase the nutrient content in the soil.


Lobelia doesn’t need pruning or fertilizer. However, if you notice it growing too large, you can consider giving your Laguna Sky Blue a light trim to keep it in shape.

The Bottom Line

As you can see, Laguna Sky Blue Lobelia can be a stunning addition to any garden. Because it is easy to grow and doesn’t require much attention, you can add it around your garden as you wish without worrying about it.

Its delicate blooms will attract pollinators during the blooming season and contribute to making your garden look lively and attractive.

Plus, they might keep away pests and other insects, which can come in handy if you have a vegetable garden. Consider mixing this Lobelia with other plants for a unique effect and contrast of colors.

Related Article: Is Lobelia a Perennial or an Annual? 

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