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    Home»Hummingbird»Does Hummingbird Sage need full sun?
    Hummingbird

    Does Hummingbird Sage need full sun?

    Kia PrimackBy Kia PrimackMarch 5, 2024No Comments5 Mins Read
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    Hummingbird sage (Salvia spathacea) is a beautiful, aromatic herbaceous perennial that is native to California and Oregon. With its fuzzy green leaves and vibrant red flowers that attract hummingbirds, it’s a favorite plant for many gardeners. But like most plants, hummingbird sage has specific needs when it comes to sun exposure. So does hummingbird sage need full sun? Let’s take a closer look.

    Quick Summary

    Hummingbird sage thrives in full sun, needing at least 6 hours of direct sun per day. Partial shade is okay, but too much shade will result in fewer flowers. Hot afternoon sun may require some afternoon shade in very hot climates. Hummingbird sage does best in USDA zones 8-10 and Sunset zones 14-24.

    Ideal Sun Requirements

    Hummingbird sage grows best in sites that receive full sun, which means at least 6 hours of direct, unfiltered sunlight per day. Full sun helps hummingbird sage grow bushy and compact, produce more flowers, and thrive.

    Partial sun or light shade is okay, especially in very hot climates, but too much shade will result in weak, leggy growth and fewer blooms. Afternoon shade is recommended in zones 8 and 9 when summer temperatures exceed 90°F.

    Here are the ideal sun requirements for hummingbird sage:

    Sun Exposure Hours of Direct Sunlight Per Day
    Full sun At least 6 hours
    Part sun 4-6 hours
    Part shade 2-4 hours

    Getting the right amount of sun helps hummingbird sage thrive and produce an abundance of blooms that will attract hummingbirds, bees, butterflies, and other pollinators to your garden.

    Sun Requirements by USDA Zone

    Another way to understand the ideal sun exposure for hummingbird sage is to look at sun requirements by USDA hardiness zone:

    USDA Zone Sun Requirements
    8 Full sun to partial afternoon shade
    9 Full sun to partial afternoon shade
    10 Full sun

    In the coolest parts of its range like zones 8 and 9, afternoon shade helps protect hummingbird sage from intense summer heat. But in zone 10, it thrives in full, direct sun.

    Sun Requirements by Sunset Zone

    The Sunset Western Garden zone system provides more detailed climate information for the western U.S. Here are the ideal sun conditions by Sunset zone for hummingbird sage:

    Sunset Zone Sun Requirements
    14-16 Full sun along coast, afternoon shade inland
    17 Full sun along coast, afternoon shade inland
    18-19 Full sun to partial shade
    20-24 Full sun

    Coastal climates in Sunset zones 14-17 are cooler, so afternoon shade helps prevent heat stress. Further inland where it’s hotter, hummingbird sage grows best in full sun in zones 18-24.

    Characteristics of Plants Grown in Too Much Shade

    Growing hummingbird sage in too much shade can cause leggy, weak growth and fewer flowers. Here’s what to watch out for:

    Leggy Growth

    Without enough sun, hummingbird sage will grow tall and spindly as it reaches for sunlight. The stems will be elongated and thin, causing a loose, open growth habit instead of a full, bushy, compact form.

    Smaller Leaves

    Shade-grown leaves will be significantly smaller than those grown in full sun. They may be pale green or lime green rather than vibrant green.

    Fewer Flowers

    Lack of sun means fewer blooms. Flower production will be reduced by as much as 50-75% compared to plants grown in full sun. The flowering period may also be shortened.

    Increased Disease and Pest Susceptibility

    Hummingbird sage grown in too much shade is more prone to powdery mildew and aphids. Proper sun exposure keeps plants healthy and vigorous.

    Weak Growth

    With insufficient light, hummingbird sage will produce weak, spindly stems and sparse foliage. This can lead to flopping, open growth unable to support itself.

    Providing Sunlight in the Landscape

    When siting hummingbird sage in your landscape, make sure to provide the right amount of sunlight:

    South-Facing Sites

    Choose south-facing sites that receive sun for most or all of the day. South-facing walls can reflect additional sunlight.

    Open Areas

    Plant hummingbird sage in open garden beds, borders, meadows, and naturalized areas with no shade cast by trees or structures.

    Remove Overhead Shade

    Prune back encroaching tree branches to open up the area to more sunlight.

    Moveable Containers

    Grow hummingbird sage in pots, planters, or other movable containers that can be shifted to optimize sun exposure.

    Providing Afternoon Shade

    While hummingbird sage thrives in full sun in most climates, afternoon shade can be helpful for plants grown in zones 8-9 and in hot inland or urban environments. Here are some ways to provide afternoon shade:

    East-Facing Sites

    Choose garden sites that face east to receive morning sun but afternoon shade.

    Trees or Shrubs

    Position hummingbird sage on the east side of trees or shrubs that will shade the plant in the hottest part of the day while allowing morning sunlight.

    Structures

    Take advantage of shade cast by nearby buildings, fences, trellises, or other structures in the afternoon.

    Protective Screens

    Install shade cloth, lattice panels, or outdoor curtains to filter intense late day sun. Remove or open them up in cooler seasons.

    Conclusion

    In summary, hummingbird sage thrives best in full sun conditions, with at least 6 hours of direct sunlight per day. This sun-loving perennial produces the most flowers and healthiest growth when given plenty of sunlight. While light shade is okay, too much shade will result in weak, leggy growth with few blooms. Careful siting and selective pruning or shading can help provide the right balance of sun and afternoon shade. With the proper light exposure, hummingbird sage will reward you with abundant red blooms that attract hummingbirds and other pollinators to your garden.

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    Kia Primack

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