Little plants series – Botanically Inclined

Cuteness alert – Clinopodium arkansanum

Plant portraits, Wildflowers of North America

Limestone calamint (syn. Calamintha, Satureja)

Some may have noticed that I’m in love with little plants; I like them even more when they are fragrant!

The Limestone calamint is a dwarf, extremely aromatic species that I really wanted to have in my seed collections and around my rockery. In Ontario, it can be found growing on the rocky shores of Lake Huron, on temporarily moist, calcareous flats (alvars).

Clinopodium arkansanum – Limestone calamint

The little cutie has large blooms for its size, then fruits which remain enclosed in the calyces. The stems take a nice purple colour contrasting nicely with the lavender flowers. Stepping on them (by mistake of course!) will release an aromatic minty wave into the air; also an ID help when not in flower ;)

Unfortunately, it is very hard to say when the seeds are ‘ready’ and had I failed to collect them in the wild during the past couple of years.

Fortunately, I managed to collect a few this time!

Too cute not to have it!

Clinopodium arkansanum

Clinopodium arkansanum seeds

August 11, 2016

C-section – Roscoea tibetica

Plant portraits, Propagation

Update: I have serious doubts now that this is R. tibetica (or bhutanica) and although I had intentions I won’t add to the general confusion by offering seeds. I am waiting for other opinions regarding its identity (maybe R. australis?)…..probably it will be a looong wait.

Yesterday morning I had the wonderful surprise to find Roscoea (tibetica) in ‘labour’. The capsule was just starting to split open showing the seeds. The smallest of the genus, R. tibetica has a particular way of developing the capsule at soil level (easy to miss it), inside the stem actually, and I thought it would be interesting to show it, especially because this is also the final confirmation of its identity.

Roscoea (tibetica) showing split capsule

Roscoea species have arilate seeds, so if ants are around (or earwigs) it’s wise not to miss the ‘delivery’. A bit of help is needed to extract the seeds without the stem being destroyed – a clean, small cut, followed by a bandage application (cheesecloth works perfectly) to secure the leftover seeds (the flowers open in succession so not all the seeds mature at the same time).

Size, shape and arils are good characters for Roscoea ID, especially considering that there is quite a bit of confusion going around – R. tibetica has seeds with deeply lacerate arils.

Roscoea tibetica split capsule with exposed seeds

Roscoea tibetica - more seeds remain inside

I presented Roscoea tibetica in the Little plants series; this year grew better in part-shade, sharing a container with A. fargesii seedlings. This is a great little Roscoea for the rock garden. Easy to grow from seeds, it can be quite variable; the form shown in the featured image has small purple flowers barely showing from among the stems, so one cannot really call it a showy plant. More than this, it starts growing sometimes in June, it flowers in late June, and by mid-August the seeds are ripen – ‘living in the fast lane’!

Roscoea tibetica foliage

Roscoea tibetica seeds with lacerate arils

Roscoea tibetica seedlings

One for collectors and people in love with ‘little plants’ :)

Good read on Roscoea: The Genus Roscoea – Jill Cowley, RBG Kew, 2007. Speaking of which, reading again about R. tibetica and R. bhutanica, it seems that my plant fits more likely with the later: “Leaf blades usually 2-6 at flowering time, slightly auriculate… Inflorescence enclosed in leaf sheats. Flowers opening just above leaves, one open at a time…..Seed aril shallowly lacerate.”

Happy to hear other opinion…

August 19, 2015

The resurrected – Salvia daghestanica

Gardens, Plant portraits

Little plants series III

A few years ago I bought a silver leaf Salvia daghestanica for my dry and sunny mini- rockery. It did quite well, but this spring was obviously in distress. Decided to nurture it until its final breath, I planted it by itself in a small pot.

But it has resurrected and flowered profusely (it may really be its last breath) but anyway, the hummingbird has visited it, and now at least we can hope for seeds! Maybe THE BEST silvery leaf sage (sometimes called Salvia canescens var. daghestanica). An amazing plant – you can read a longer story about silver leaf Salvias on the Prairie Break Blog (of the equally amazing Panayotis Kelaidis, who actually is responsable for introducing this Salvia in cultivation in North America).

July 15, 2014

In praise of little plants I

Alpine plants, Gardens, Plant portraits, Propagation

Plants that did make sense to have in my small garden

A dwarf, big flowered blue columbine: Aquilegia discolor, most probably a cross (from Seedex as A. saximontana)

: Aquilegia discolor cross

True that if we would grow only ‘reasonable’ plants, our gardens would lack all spontaneity and wonder. But because I can now easily enjoy them in containers, and not worry about their relocation, I think a bit of praise is warranted.