Zanthan Gardens
Weblog of a Central Austin Garden

Carol at May Dreams Gardens invites us to tell her what’s blooming in our gardens on the 15th of each month.

May 15, 2010

Spring wanes and May ushers in the early summer flowers as well as early summer temperatures which soared into the 90s a few times. Although we’ve had little rain until last night’s downpour of more than 2 inches, cloud cover has kept temperatures in the 80s. Unfortunately it’s also kept the humidity very high so May has made gardening uncomfortably sticky work.

The height of the flowering season at Zanthan Gardens is over. About half of what was flowering in April GBBD is gone but there are almost as many new flowers. The palette morphs from blues and purples into yellows, oranges and reds.The bluebonnets have completely gone to seed. The poppies and nigella last only a couple of weeks, a very short bloom season given that their growing season is almost as long as the bluebonnets and larkspur.

The big difference this year compared to earlier years is that some flowering bushes and small trees that usually flower dependably in May (such as duranta and oleander) were frozen to the ground in our uncharacteristic January freeze. They are alive but they haven’t started flowering yet.

Between GBBDs

A couple of flower bloomed and faded in my garden between GBBDs and so didn’t show up in the inventory for either April or May.

• Amaryllis ‘Black Pearl’.
• Lonicera japonica
• Louisiana iris ‘Full Eclipse’
• raspberries

Complete List for May

This is the list of all plants flowering today, May 15th 2010, at Zanthan Gardens. I’ve also noted if the plant was blooming this month in previous GBBD years, 2007, 2008, and 2009.

• Abelia grandiflora (2009, 2010)
• Antirrhinum majus (2010)
• Aristolochia fimbriata (2010)
• Commelinantia anomala (a few flowers revived by rain) (2007, 2008, 2009, 2010)
• Consolida ambigua (2007, 2008, 2009, 2010)
• Crinum bulbispermum (2007, 2009, 2010)
• Engelmannia peristenia/pinnatifida (2007, 2008, 2009, 2010)
• Eschscholzia californica ‘Mikado’ (2008, 2009, 2010)
• garlic (2010)
• Gaura lindheimeri(2010)
• Hesperaloe parviflora (2008, 2009, 2010)
• Hibiscus syriacus (full bloom) (2007, 2008, 2009, 2010)
• Lavandula heterophyla ‘Goodwin Creek Grey’ (2007, 2008, 2009, 2010)
• Lilium longiflorum, Easter lily (2010)
• Lupinus texensis (a couple of fading flowers) (2007, 2008, 2009, 2010)
• Mirabilis jalapa pink (2007, 2008, 2009, 2010)
• Nandina domestica (2007, 2008, 2009, 2010)
• Nierembergia gracilis ‘Starry Eyes’ (2009, 2010)
• Nigella damascena (2007, 2008, 2010)
• Oenothera speciosa (2007, 2008, 2009, 2010)
• Oxalis triangularis (2007, 2008, 2010)
• Papaver rhoeas ‘Angel’s Choir’ (2010)
• Papaver somniferum (a couple of fading flowers) ‘Lauren’s Grape'(2010)
• Parkinsonia aculeata (2008, 2009, 2010)
• Phlomis lanata (2008, 2009, 2010)
• Polanisia dodecandra (2007, 2008, 2009, 2010)
• Portulaca grandiflora (2010)
• Pyrrhopappus multicaulis (2007, 2010)
• rose ‘Mermaid'(2007, 2010)
• rose ‘New Dawn’ (2007, 2008, 2009, 2010)
• rose ‘Red Cascade’ (2007, 2008, 2009, 2010)
• rose ‘Souvenir de la Malmaison (2007, 2008, 2009, 2010)
• Rudbeckia hirta (2008, 2010)
• Sedum album (2007, 2008, 2009, 2010)
• Setcresea (both purple and green) (2007, 2008, 2009, 2010)
• Thymophylla tenuiloba ‘Golden Fleece’ (2009, 2010)
• tomato (2007, 2009, 2010)
• Trachelospermum jasminoides (starting to fade) (2007, 2008, 2009, 2010)
• Verbena canadensis (lavender wilding) (2007, 2008, 2009, 2010)
• Viola cornuta (one selfsown plant) (2007, 2008, 2010)
• Zexmenia hispida (2007, 2008, 2010)

One of my favorite flower tales is of the Rev. W. Wilkes, the Vicar of Shirley, whose keen observation and tenacious dedication is responsible for the Shirley poppy. He tells how “in the summer (I think) 1879 or 1880 I noticed in a wilderness corner of my garden among a patch of field poppies, one bloom with a narrow white edge”. He selected and selected over generations of descendants until he had obtained a strain of poppies with white edges and petals of pale pinks, mauves, and lilacs from the ordinary red corn poppy.

Over the years his single-flowering poppy was further selected for double poppies. On January 27, 2010 (a bit late) I planted the strain ‘Angels’ Choir’ from Renee’s Garden Seeds. The seed packet describes the ‘Angel’s Choir’ strain as an “award-winning combination of silken-petaled, double poppies featur[ing] shimmering watercolor shades including cream, apricot, peach, coral, lavender, pink and bicolors and picotees. It took breeders years of selection to develop these absolutely magical forms and lustrous soft colors”.

Going Rogue. Or Rouge

Following generations of work by those who carefully selected only the most delicate colors, I feel that I must dutifully rogue out the red and orange flowers. Although I like the clear hues, they really clash with the more delicate ones. Anyway, I can enjoy them inside.

Update: 2023-05-11

The Shirley poppies are in full bloom this week. Each morning I jump out of bed to see what new flowers have opened and mark which ones I want to save for next year. I let them disappear from my garden after 2012 but looking at old photos reminded me how much I liked them. So I bought another packet of seeds. I’ve had good luck with them again the last four years, (2020 through 2023). They bloom later than the bluebonnets and larkspur so if I planned it better, they could take the stage as those two are going to seed.