Rob's plants
home garden plants wildlife seed photos
plant sale journal topics plantlinks fun guestbook

Galphimia glauca

Galphimia glauca

Common name thryallis
Family malpighiaceae
Life cycle shrub (Z8-10)
Flowers yellow (spring-fall)
Size 6'
Light sun-part shade
Cultural notes drought-tolerant
From seed Self-seeds sparingly in our garden

Low care shrub covered in yellow flowers throughout the growing season. It is popular as a background planting in wide borders, visual barriers, or foundation plantings (because they are easily pruned or sheared into a low hedge). We planted ours as a nice-looking smallish shrub in late May (photo below), and by early July it had not only grown a bit, but also became even more floriferous. Since then it has only grown larger and fuller. One of my favorite "new plants" since moving to Texas. They are root hardy to zone 8, but online sources say top growth may be killed by temperatures dipping below 30F. So I was surprised how well our specimen weathered the freeze into the mid-teens in January 2018 – it was one of the only plants in the garden to stay evergreen, and never missed a beat. It did suffer in the even more severe freeze of February 2021, losing all its leaves and smaller twigs – but it returned from the base and main trunks about a month later.
Native to Central America.

Galphimia glauca

It takes a brief break from flowering between January and April, but on the first of May, it is once again full of buds, just waiting to pop (with just a few already opened up in the photo here). The foliage stayed nice all along.

Immediate aftermath of the '21 freeze – the leaves would all drop, and most of the top growth died
Galphimia glauca
Regrowth a month after the severe freeze of '21
Young shrub, first planted
Galphimia glauca
Several years after planting our first specimen, I noticed several seedlings underneath our mother plant – these survived the 2021 megafreeze and were rearing to go by early April.

In our garden, this plant grows in the following areas: back fence border, houston front yard, right-fence nursery area

About my plant portraits
PlantLinks to other web pages about Galphimia glauca

I welcome comments about my web pages; feel free to use the form below to leave feedback about this particular page. For the benefit of other visitors to these pages, I will list any relevant comments you leave, and if appropriate, I will update my page to correct mis-information. Faced with an ever-increasing onslaught of spam, I'm forced to discard any comments including html markups. Please submit your comment as plain text. If you have a comment about the website as a whole, please leave it in my guestbook. If you have a question that needs a personal response, please e-mail me.

Your name

Your comments

home garden plants wildlife seed plant sale topics guestbook journal plantlinks

Last modified: April 08, 2021
Contact me