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Lupine Plant Size:
Get the Right Size for You

Updated: July 8, 2023

Lupine plants are known for their beautiful, vibrant flowers and unique foliage. These perennial plants come in a variety of sizes, ranging from dwarf varieties suitable for small gardens to towering giants that make a statement in any landscape. When choosing lupine plants for your garden, it is essential to consider their size and how it will fit into your overall garden design. In this article, we will explore the different lupine plant sizes available and help you find the right size for you.

Dwarf Lupines: Perfect for Small Gardens

If you have limited space or a small garden, dwarf lupine varieties are an excellent choice. These compact plants typically reach a height of 8-12 inches and have a spread of about 12 inches. Despite their small size, they still produce stunning flower spikes with vibrant colors.

Dwarf lupines are ideal for container gardening, rock gardens, or as borders along pathways. They add a pop of color without overwhelming the space. Some popular dwarf lupine varieties include Pixie Delight, Minarette, and Gallery Blue.

When planting dwarf lupines, make sure to provide them with well-drained soil and ample sunlight. Regular watering is necessary to keep these small plants healthy and thriving.

Medium-Sized Lupines: Striking Beauty in the Garden

If you have a medium-sized garden and want lupines that make a statement without overpowering the space, consider medium-sized varieties. These lupines typically grow to a height of 2-3 feet with a spread of about 18-24 inches. They have robust flower spikes and create a focal point in any garden.

Medium-sized lupines can be planted in mixed borders, cottage gardens, or used as background plants in perennial beds. They provide vertical interest and attract pollinators with their abundant nectar-filled flowers. Some popular medium-sized lupine varieties include Russell Hybrids, Chandelier, and Desert Sun.

To grow medium-sized lupines successfully, choose a sunny spot with well-drained soil. These plants appreciate regular watering, especially during dry periods. Deadheading spent flowers will encourage continuous blooming and keep the plants looking tidy.

Tall Lupines: Majestic Presence in the Landscape

For those seeking a dramatic impact in their landscape, tall lupine varieties are the way to go. These impressive plants can reach heights of 4-6 feet or even higher, with a spread of about 2-3 feet. Their towering flower spikes dominate the garden and create a stunning visual display.

Tall lupines are best planted at the back of borders, against fences, or as standalone specimens. They provide an architectural element to the garden and are sure to catch the eye of any visitor. Some popular tall lupine varieties include Blue Jacket, Manhattan Lights, and My Castle.

When growing tall lupines, choose a location that receives full sun for at least six hours a day. These plants prefer fertile, well-drained soil and benefit from staking to support their height. Regular watering is crucial during dry spells to ensure they thrive.

Tips for Growing Lupines

Regardless of the size of the lupine variety you choose, there are some general tips to keep in mind for successful growth:

  1. Soil Preparation: Lupines prefer slightly acidic to neutral soil with good drainage. Amend heavy clay soils with organic matter to improve drainage and fertility.

  2. Sunlight Requirements: Most lupine varieties thrive in full sun but can tolerate partial shade. Ensure they receive enough sunlight to encourage healthy growth and abundant flowering.

  3. Watering: While lupines are relatively drought-tolerant once established, regular watering is essential during dry spells. Water deeply and allow the soil to dry out slightly between waterings.

  4. Deadheading: Deadhead spent flowers to encourage continuous blooming and to prevent self-seeding. This will also keep the plants looking neat and tidy.

  5. Support for Tall Varieties: Tall lupines may require staking to prevent them from toppling over during strong winds or heavy rain. Use bamboo stakes or plant them near a sturdy support structure.

  6. Fertilization: Lupines are nitrogen-fixing plants, meaning they convert nitrogen from the air into a form that can be used by other plants. However, you can provide a balanced slow-release fertilizer during the growing season to promote vigorous growth and flowering.

By considering the size of lupine plants and their specific needs, you can create a harmonious garden that showcases these stunning flowers. Whether you opt for dwarf, medium-sized, or tall lupines, their vibrant colors and unique foliage are sure to make a lasting impression. Happy gardening!