YELLOW IS THE COLOR OF THE MOMENT

Two weeks ago we had friends visiting from Denver. We were so excited to show them our wonderful desert home but disappointed that the lack of rain this year was making the desert look very drab and dowdy.  Usually the desert behind our house is a sea of yellow, at this time of year, with flowering brittle bush, Encelia farinosa. This year their leaves are brown and dried up living up to their name. I wish our friends had come a couple of weeks later, as following a brief shower and a cold front passing through, all the trees burst into bloom. Maybe the shower and drop in pressure had nothing to do with it and the flowering had more to do with daylight hours and the natural cycle of blooming. The Palo verde, mesquite and acacia are now putting on a magnificent show. Just driving down the road with the trees in flower and the backdrop of the mountains is the most magnificent sight. 

This is the  Palo Verde, Parkinsonia x Desert Museum, in our front garden. Regrettably this tree was overwatered by the previous occupants and has grown very large. We have had to do some canopy pruning as well as root pruning as the roots were bringing up our driveway in several places. We were also fearful of them making their way into our sewers system. But for all these negatives we love the tree for the filtered shade it provides for the plantings beneath its canopy. It is the sterile hybrid of three palo verde species, P. aculeata, P. microphyllum and P. florida. Its attributes are that it is thornless, fast growing, drought tolerant and attracts many pollinators.

When the flowers drop the ground is a carpet of yellow  

Below is another common spring bloomer, the mesquite, Prosopsis sp.  producing long pods later in the season. These are a favorite of the javelina and can also be ground to make a flour as the Hohokam  lived did many years ago. For all their messy nature the trees both stabilize and being a legume, improve the soil.

Above the sweet acacia, Vachellia farnesiana, The desert trees and shrubs are competing for who is the most fragrant. 

Other shrubs like the hop bush, Dodonaea viscose, are also blooming. These reseed quite readily and I have a couple which seeded in a perfect place among the rocks and which I intend to keep. Yesterday, I collected the papery winged fruits, with the intention of sowing some behind the house in what we now call the hinterland. 

This tree loves dry rocky slopes so will be quite at home. 

In my limited space areas damianita,  Chrysactinia mexicana, is very much at home in fast draining desert soils. It is extremely tolerant of heat and drought. If I had one complaint is that the yellow color is just a shade too bright. It germinates quickly from seed but bringing it to even childhood even under controlled conditions is very challenging. The wiry roots are thin and easily damaged. I have had success with only one plant. It makes thousands of seeds but never produces seedlings naturally. 

In truth I think I prefer the gently sprawling nature of the yellow evening primrose, Oenothera primiveris. It is planted along the edge of the walkway between two rosemary bushes. 

evening primrose

The first of the prickly pear blooms are opening. 

The barrel cactus make up for having the smallest of blooms by making a bold statement with their structure. 

Flowers on the Blue barrel cactus, Ferocactus glaucescens

The blooms are barely noticeable on the golden barrels, Echinocactus grusonii, but they leave behind dry prickly pods with small black seeds. I don't know what the conditions are for seedlings to grow but I never find any. The quail are very good foragers.

Next time I'll introduce you to the saguaro. There is much of interest to share.

MY DESERT GARDEN COMES TO LIFE

Spring is a wonderful time for all gardeners but particularly so for desert gardeners. It is the season of spectacular bloom brought on by winter rains. I have taken advantage of that by adding many blooming plants to my garden to complement the cactus and succulents. Some are perennial and some are annuals like this scarlet flax Linum grandiflorum rubrum. Annuals like to seed themselves along the edge of the paths where they driven by rain. Not always the best place.

Flax are dotted all over the front garden among rocks and cactus. I have always favored growing from seed and finally had success with damianita, Chrysactinia mexicana. This one I grew from seed planted 2 years ago. If I'm not careful it will be crowded out by these penstemon seedlings and a desert marigold. Despite the enormous numbers of seed they produce I have only ever found one growing naturally in my garden. No doubt the fault of the hungry quail who frequent the garden.

Damianita, blackfoot daisy and skullcaps are perfect low-growing perennials for the desert rock garden although not easy to come by. I did manage to find 2 purple skullcaps but unless they are in bloom they are sometimes miss-labeled and turn out to be the more common pink variety. Despite the many flowers and seeds produced it is very difficult to get these three to self-seed.

I'm trying to maintain a good balance of flowers and succulents for the quieter time of year when the cactus are center stage.

The damianita will  need to be sheared back soon so they can bloom again when and if the monsoon rains come. 

 

Just coming into bloom is the chocolate daisy, Berlandiera lyrata. I bought one plant 2 years ago and have been able to grow several more plants from seed over the winter. It has always performed well throughout the year opening new flowers every day. It is a morning bloomer, closing its petals by noon. It's chocolaty fragrance cannot be missed when walking around the garden. 

 This is one of three hedgehog cactus, Echinocereus triglochidiatus, I inherited,  which has bloomed successfully each year.  Their location is not ideal as they receive sun only in the later parts of the day. A place in a more open spot would probably result in a more spectacular bloom. I have allowed this native cudweed to remain. I love its silvery soft leaves which are the closest we would get to growing lambs ears in the desert. Some call it pearly everlasting as the flowers do well when cut and dried. 

My desert marigold,  Baileya multiradiata, has become so successful that it threatens to overgrow the driveway. I think it must be getting too much water. It reseeds quite readily where the layers of rock are not too deep or too large.

Spring is a very yellow time of year in the desert and I think I may just have a little too much of it. Between the brittle bush, damianita and the desert marigold I need to find a happier balance. Brittle bush is a wonderful desert plant which also reseeds heavily. I think it is underused as a native plant filling the roadsides with its yellow and dusky sage colored leaves. 

 

Seeds of blanket flowers grown from seed last year have been immensely successful. They are acting as though they are perennial. Last year they bloomed all summer long. You couldn't ask more of a plant in this desert climate.

 And there are frequent pop-ups in the spring of native wildflowers like the verbenas.

                                                         Verbena gooddingii

                                                              Moss verbena, Verbena tenuisecta

 The mix of colorful annual, perennials, cactus and succulents is a joy to behold on my early morning stroll around the garden. And it is always early.  Spring and summer in the Sonoran desert is a time to get up early to enjoy the cool mornings. The sun rises early and we must make the most of the best part of the day. Now we are in our dry summer with no rains expected until the monsoons arrive in July. Fingers crossed we will get good rains this summer.

HOW TO DO IT WITH WILDFLOWERS

The front courtyard garden is blooming with Texas native wildflowers and has entered its most floriferous season. Using short season wildflowers in the landscape requires some structural specimens as well as hardscape. We are fortunate to have some great agaves that do the job well.

Under the whales tongue agave, A. ovatifolia, the once blooming flowers of Tulipa hummilis, have been replaced by flowering purple skullcap, Scutellaria wrightii, and yellow blooming square bud primrose, Calylophus berlandieri. The skull caps will bloom all summer if given a trim back after flowering.

And on the other side beyond the Mexican feather grass is the damianita, Chrysactinia mexicana with its aromatic, fine-leaved shrubby foliage.

Of course the bluebonnets, Lupinus texensis, being an annual will soon be gone but the accompanying blackfoot daisies, Melampodium leucanthum, will bloom all summer and will be at their best in the fall.

Blackfoot daisy

The claret cup cactus flower, Echinocereus triglochidiatus, is one of my favorite. The flower is longer lasting than many cactus flowers.

In a shady corner, and there aren't many in this garden, baby blue eyes, Nemophila phaceliodes.

A few seeds gathered from some flowers on an unbuilt lot and I now have several clumps of Barbara's buttons, Marshallia caespitosa. They are perennial but when summer comes the foliage dies back only to appear again in late winter.

Lyre leaf sage, Salvia lyrata, pops up all over the garden and would make a great ground cover with its attractively pattered leaves.

One of my favorite places to sit in the garden is in the breezeway between the garage and house There I can enjoy the view of this part of the garden with flowers and bubbling water feature. Yesterday I watched the wrens flying back and forward building a nest in-between the pots on the top shelf of the cactus theater.

Such messy builders but such fun to watch.

I hope you are enjoying spring in your garden wherever you are.

WHO IS ON THE STAGE THIS WEEK

The most dominant flowers of the last 4 weeks have been the bluebonnets, columbines and Indian paintbrush. They are now busy setting seed for next year while a whole new range of plants take over, primarily the yellows. Our roadsides are quite stunning with their yellow composites mixed in with blanket flowers.

My garden is not so shabby either.

Square bud primrose, Calylophus barlandieri, nestled in among rocks and gravel.

Engelmann's daisy, Engelmannia peristenia. I remember when I bought this at the Wildflower Center sale some years ago someone said they would be everywhere, and they are.

But so far, only in the from Courtyard garden where I pull those that are in the wrong places. I am hoping to get them to move outside the walls at the front. The question is always, will I be around at seed collection time.

Four nerve daisy, Tetraneuris scaposa,

Damianita, Chrysactinia mexicana.

Threadleaf coreopsis, Coreopsis verticillata, swaying around on two foot high thin stems.

And California poppy, Eschscholzia californica, a vigorous self seeder.

These are all native to Texas but there are a few more yellows enjoying the stage. The native Coreopsis tinctoria is a few weeks away from flowering but other tall and short coreopsis are flowering.

And the silver leaf gazania, Gazania tomentosa, perfectly at home in a bed of gravel.

And in the English Garden the many petaled, fragrant  Rosa 'Molineux' named by David Austin for the football stadium of his favorite soccer team, Wolverhampton Wanderers.

And finally the large yellow named bearded iris which is a favorite because blooms after my other iris have finished blooming.

Will the yellow flowers please take a bow.