Sunlight, Shade & Your Plants
Seems so simple. You just place the plant in the “right light conditions” listed on the plant tag and give them a bit of TLC to settle in.
Only to watch them struggle to thrive the rest of the season or worse die! GASP the horror…WHY? WHY? WHY does it happen?!?
Well friend…
SUNLIGHT could be the culprit.
It is not quite as simple as that plastic tag makes it out to be! While it certainly could be other factors like soil, condition of the plant’s roots, and water… it’s a good chance SUNLIGHT played a factor too.
Plant ID tags are part of the problem…
Friend, there’s only so much room on those little plastic tags—
FULL SUN. PART SUN. SHADE.
Short phrases that fit on the tag are a must for manufacturers of those plastic plant labels.
*note: we do not use these plastic labels at the farm. Instead we use wooden tags to reduce plastic in your garden!
To really understand what KIND of light a specific plant needs you want to really KNOW more about the plant.
Here’s what the tag won’t tell you:
Does the plant need FULL SUN but also afternoon shade?
If part sun/shade, what time of day should the plant receive it?
Where would this native plant be located in the wild? Open meadows? Deep woods with morning/evening light? Or along woodland edges with filtered light coming through shrubs?
Summer afternoons are for sitting in the shade
So what exactly is Full Sun? Part Shade?
At its most basic level, it is the hours of light a plant needs to THRIVE.
This of course varies based on the plants unique needs. Again, it is helpful to know WHERE in Nature you’d find the plant growing.
Our friend Becky’s pollinator garden is a great example of the role of sunlight upon a plants health.
In 2022, she filled this ‘hot spot’ garden with our Purple Coneflowers, Anise Hyssop, Rudbeckia plus Prairie Dropseed. This South facing garden gets over 8 hours of sun a day!
All of these native plants would naturally be found in open fields & meadows. In that wild setting, full sunlight and competition from tall grasses forces meadow plants to reach for the sunlight adding height to the blooms.
Here in Becky’s garden they seem to be celebrating having 8+ hours a day of sunlight all for themselves!
Just beautiful and what a great spot to watch hummingbirds, bees & butterflies!
So how many hours of light are we talking about anyway?
Regardless of SHADE or FULL SUN— these terms are the hours of LIGHT a plant needs to thrive not the hours of shade!
Plants that need ‘FULL SUN’ want to bask in 6 or more hours of direct light a day. Note that some native plants like native sunflowers may actually want MORE light than that.
Remember~ SHADE is not the hours of shade. It is the hours of sunlight the plant needs..
Partial Shade plants like Rose Mallow Hibiscus need 4-6 hours of sunlight preferably filtered as they are often found is swampy forests.
Shade loving plants still need light usually need 2 or less hours of direct/filtered sunlight to thrive. Placing these shade loving plants under trees & shrubs or along a north side of the garden easily achieves this.
How? The trees, shrubs or structures shelters the plants from the suns strongest rays between 9am and 7pm. As the sun rises & sets is when these plants will get their 2 hours of less a day of sunlight.
Next time you visit our nursery
to pick out your plants I hope you find this quick Sun & Shade Guide helpful!
Until next time~ keep growing for pollinators and smiling at the bumblebees!
Bibliography & Resources
Lady Bird Johnson Wildflower Center
‘Defining Sun Requirements for Native Plants’, Scott Vogt. December 2020 Dyck Arboretum
‘Environmental Factors Affecting Plant Growth’ Oregon State Extention Service