Monroe’s Monkey Grass

I wonder if the late Atlanta nurseryman, W.L. Monroe had any idea what would become of his white-flowered monkey grass, that he selected as a seedling and subsequently introduced to the gardening world in 1957?

In the 65 years that’s passed since it’s introduction, Liriope muscari ‘Monroe White’ is still the gold standard by which all white-flowered liriope are judged. Here are our plants flowering this week at JLBG. Unlike most liriope, which thrive in sun, this cultivar needs light shade for most of the day to prevent foliar scorch. Our plants in the photo only get a couple of hours of direct sun, where they thrive. Winter hardiness is Zone 6a-10b.

Lriope muscari ‘Monroe White’

False Larch

We’ve long had an affinity for larches (probably due to a hangover from watching the Monty Python larch skit far too many times), but there aren’t many larches that will survive our hot, humid summers. We can, however, succeed with the false larch, which belongs to the monotypic genus, Pseudolarix. Both larix (larch) and pseuodlarix (false larch) are deciduous conifers, whose foliage turns golden yellow in fall prior to leaf fall.

Pseudolarix is known as an open, airy species, and having seen quite a few over the last 50 years, all were very similar. Imagine our surprise, when a new seedling we purchased in 2017 turned out to be incredibly dense and fast growing. The first photo is our oldest typical pseudolarix, now celebrating 29 years in the garden.

The new clone, which we’ve named Pseudolarix ‘Greensanity’, just 5 years in the garden, is pictured below that. We look forward to working with some woody plant nurseries to get this exceptional form grafted and into the trade.

Pseudolarix amabilis – typical form at JLBG

Pseudolarix amabilis ‘Greensanity’

Very Variegated

This spring, one of our flats of Rohdea japonica seedlings turned up with an inordinate number of variegated seedlings. In a flat of approximately 1,000 seedlings, we typically expect 3 – 10 variegated offspring, when the parent plant has white streaking in the middle of the leaf (L2 layer).

All of the variegated seedlings were removed and potted individually last week…all 300 of them. It will be fascinating to see what unique forms result.

Gussied up Ostii

One of our Paeonia ostii seedlings flowered well for the first time this year, and turned out to be semi-double flower instead of the typical single flowers. We’ll continue to observe it in future years and make sure the trait is stable, but if so, this could be a lovely addition to the world of hardy tree peonies that tolerate heat as well as cold.