Showing posts with label penstemon. Show all posts
Showing posts with label penstemon. Show all posts

28 May 2017

Blue Collar

This is the first year the penstemon is blooming with any kind of presence. Say hello to Rocky Mountain Blue -- and I am proud to say that I started this perennial from seed in 2015. Again, this was one of the seeds I obtained from the annual February seed exchange that I have been attending but will skip in the future.

I took loving care of the beadtongue (who thought up that name) and placed it in a prime spot that was regularly mulched, and was in full sun. During the first summer, the 5 plants stayed healthy and vigorous, although no flowers appeared. No pests appeared on them, either.

Last year, the five plants produced one flower spike -- a very electric blue. The slight shades of purple around the edges of the more mature petals gave it an iridescent appearance in the sun. But only one flower spike? The blooms also are clustered along one side of the stalk.

I researched my western U.S. native to find that it prefers western conditions. This means rather dry, sandy,well-drained soils without a lot of rich organic material. Sort of a tough, blue collar kinda of plant. I have it in mulch in rather rich soils. That is probably why the leaves were so healthy I thought.

I stopped fertilizing, and let it be. This year, about 20 spikes showed up on what now looks like one plant clump. It certainly does not look like the full dense photos in the garden catalogs. Time to divide already? Most blooms are gone now, but a few remain in time for me to finally get a new post up. One note: after the stalks are finished blooming, they tend to fall over.

The plant has an interesting history. It first appeared in the 1700s in publications, and was named pentstemon from "pent" and "stamen" for the unusual 5th stamen. Penstemon, native to North America and Asia, became very popular in Europe where many hybrids were bred. Sounds very similar to the history of the sunflower -- another North American native -- that was taken to Europe, hybridized, and made its way back to North American gardens. The name of this one, Rock Mountain, suggests it is a cultivar developed here.

I think this may be a candidate for the hell strip garden - dry, rather poor soils, and in need of blooms at this time before the coneflowers and rudbeckia. Do you think it would grow there?

For The Record:
  • Clay soil with & plenty of mulch and organic amendments
  • Full sun
  • Small amount of fertilizer
  • No serious pests/disease


Garden Calendar:
  • Blooming: nasturtium, phlox, poppies, rose, kniphophia, nicotiana,
    coreopsis, peony, geranium, marigold
  • Harvested: cilantro

11 June 2016

Rocky Mountain Blue

The penstemon is finally coming around this spring, although not as much as I would like. Penstemon Rocky Mountain (Penstemon strictus), emphatically came out with an intense blue flower stalk on one of the plants in early May.

My penstemon, native to poor western soils, was started from seed obtained at last year's seed exchange. A few seeds produced five healthy seedlings. They were planted last spring in the front near the house where sun is plentiful, and near the driveway pavement where soil is warm in summer and consequently dries out fast. Perfect for them, I thought.

One solitary stalk from one plant shot out of the central plant, producing this cluster of blue blooms. Several protrusions on the other four plants looked like they would join the party, but they were just teasing me. Nothing materialized from them. But, oh! that one with its color.

Reading up a bit more, I learned that fertilizing is unnecessary and just produces leaves. Their location has good soil; maybe too good. I don't recall fertilizing them, but did not give them a poor gravel soil, either. One more summer, and I anticipate some excitement next year. I wonder if Rocky Mountain penstemon would make a good addition to my hell strip?

For The Record:
  • Mulched soil with no amendments or fertilizer
  • Full sun
  • No serious pests/disease


Garden Calendar:
  • Blooming: poppies, rudbeckia, stokesia, nicotiana, phlox, hostas, daylilies, coreopsis, lavender
  • Harvested: peas, cilantro,