Blog posts categorized as: Perennials & Annuals
Aug 17, 2017
Every time I visit new gardens, I always end up obsessed with at least one plant. On my most recent trip to Denver for the Perennial Plant Association Symposium, I came across just such a plant at several gardens through out my stops around the area.
This plant is killing me. I must have it. My precious.
I mean...look at it:
No...look at it!
The space orb blooms atop the beautiful blue/silver foliage is just too much. Not to mention, Seseli gummiferum was covered in pollinators. They were just as crazy about this plant as I was. I love the feathery silver foliage of artemesia, but inevitably 'Powis Castle' overgrows its welcome and I end up ripping it out. Perhaps this is my solution plant...
So, what is it? Well, Moon Carrot is a biennial, or short-lived perennial, that grows about 30" tall. It prefers rocky alkaline soils at high elevations...but I'm pretty sure as long as soils are well-drained, we can enjoy this beauty here. I'm gonna make it happen. I'm on a quest for seeds at the moment, but I'll report back once I have Moon Carrot in my garden.
Aug 14, 2017
If you love plants like I do, then you're probably just as easily excieted as I am to get the skinny on the latest new plant releases from the world of horticulture. Summer is always filled with lots of work travel for me, including visits to a number of high-profile industry events. At such events, breeders and brokers put on their new plant dog and pony show so us plant geeks get a preview of what's to come.
My very, very, very favorite new plant at all of the shows this summer is Senecio 'Angel Wings'. Now, I'm easily swayed by silver foliage, but there is just something about the these big floppy leaves - I can't take my eyes off of them. Now, the scoop on this baby is that quantities will be limited next year...but I suspect demand will be big.
Silver seemed to be en vogue in the new plant offerings, with at least one other Senecio on display, 'Crushed Velvet'...
Another fabulous silver overing was Calocephalus brownii...
I'm in love!
Jun 23, 2017
If you recently looked at the temperature forecast for the upcoming week you probably ended up uttering something along the lines of “ugh”. With temperatures soaring into the high 90s, most of us are beginning to spend more time indoors. Despite the heat, your garden doesn’t have to look dull; there are some plants that still strut their stuff in the midst of our ridiculous summer temperatures. Here are a few of my faves:
Old fashioned zinnas simply don’t get the attention they deserve these days. If you’re looking for easy to grow, heat-tolerant annuals you can grow from seed, there’s hardly a better performer than tall zinnas. I throw seed out in the garden in spring, step away and let them do their thing with little to no follow up care. They make great cut flowers as well.
See those white and yellow daisies in the background of the photo? Those are shasta daisies. Shasta dasies are an easy and low-maintenance perennial plant that puts on an impressive show of spring-like blooms all summer. Again, a great cut flower.
Begonias are as stable of the summer garden here in Dallas, but often you’ll see the common garden begonia looking less than perky in August. Begonia ‘Bonfire’ bucks that trend and puts on a spectacular show through the heat of summer.
Mexican bird of paradise is not only stunning in the landscape, but stunning when temperatures seem unbearable. This large tropical shrub makes quite the summer statement and the hummingbirds love it.
Hibiscus of all colors and sizes thrive in our intense summer heat. Their large and brightly colored blooms will bring your summer landscape to life; plus fill it full of butterflies.
There are many tropical summer bloomers that not only take the heat, but look great right through it. If your patio containers need a refresh, now’s a good time to hit your local garden center for heat-tolerant bloomers.
Apr 14, 2017
The "Terrible Twos" aren't just for toddlers.
If there is one thing that gardening can teach you, it’s patience. Crafting a beautiful garden or a productive veggie bed takes time and practice. Many failures will happen on the road to success. Often, we head to the garden center with a vision; then expect that vision to manifest overnight. Rarely is that the case and disappointment ensues. Whether you’re building your garden DIY style, or having it designed and installed by a professional, you’re going to have to give your plants some time to settle in an come in to their own.
These are images of plants hitting their third year in my garden, when they really started to put on a show (after looking fairly pathetic for the first two years). Rose ‘Pat Austin’, Clematis ‘Ramona’, Salvia ‘May Night’, white Autumn Sage.
For most small shrubs, vines, perennials and perennial bulbs, the third year in the garden is the charm. As the old garden saying goes “the first year they sleep, the second year they creep, the third year they leap!”
When newly planted, you must remember that your plants are basically still container plants with a limited root system. You’re going to have to water them more often and you can’t expect much top growth within the first year. Most of the plant’s energy needs to go towards developing a vigorous root system with which to take up water and nutrients.
By the second year, plants will begin to put on some top green growth, but don’t expect peak performance or an abundance of blooms. Roses and perennials may still seem a bit scraggly. This is the stage when you might start questioning your plant choices and think that they “should be looking better by now”. Hold tight.
It’s typically the third year in the garden in which your plants will begin to reward your patience. This is when they’ll start to look like the specimens you see on the tag or in that glossy plant catalog. You’ll typically see a growth spurt of top growth and blooms. Now, this doesn’t mean that it takes three years for all plants to reach their mature size; while many herbaceous perennials will come into their own during the third year, it often takes much longer for larger shrubs and trees to reach their desired size. But it is the time when you can expect to see a significant flush of new growth on most plants.
Now, for larger trees know that it often takes much longer for them to get established. The three year rule is still works for most trees 10-gallons, or smaller, when planted. Large-caliper trees can take more than three years to really begin to put down a good root system and start putting more energy into top growth.
So before you rip out your scraggly perennials or blame your landscaper and and ask for replacement plants, remember that just like you would your toddler, you need to give your plants a chance to grow out of their terrible twos.
Mar 10, 2017
Daffodils are about to throw down in Dallas.
If you love daffodils like I do, then you might also be tapping your fingers on the window whilst repeating “open, open, open…”. Daffodils are just about to throw down in Dallas. You may have seen a handful pop open just before this last ice event. While it might be tough for some of those blooms to recover, there are plenty on the way that have yet to open. If you want to add daffodils to your garden this fall, now is the time to start paying attention to what’s blooming so you can pick your
Narcissus ‘Professor Einstein’ dressed smartly in orange.
Planting these easy-to-grow bulbs is one of the best things you can do to brighten up late-winter landscapes. With at least 25 different species of Narcissus spp., and more than 13,000 hybrids available, possibilities seem endless. Mail order catalogs offer the most variety when it comes to purchasing daffodil bulbs, but choosing the right ones can be like rolling the dice. While traditional yellow trumpet daffodils are the most recognized daffodils, they certainly aren’t the only choice for Texas gardens. In fact, many of of the trumpet daffodils can leave you disappointed if you were hoping to perennialize or naturalize your bulbs. Large-cupped, Small-cupped, Triandrus and Jonquil hybrids tend to perform better in our climate and soils.
Here are a few of my less traditional daffodil favorites:
‘Thalia’ (Triandrus daffodil) If you love white flowers then ‘Thalia’ should be at the top of your list. This tough and reliable perennial creates large clumps and features pure white flowers with a wonderful fragrance. Each stem produces clusters of 2 to 3 blooms. A late-bloomer, ‘Thalia’ will close out the daffodil season in April.
Narcissus ‘Thalia is stunning in white.
‘Professor Einstein’ (Large-cupped daffodil) I can’t resist a pop of bright orange in my garden, so ‘Professor Einstein’ is a must-have. The bright orange cups paired with pure white petals creates a showstopping combination. This award-winner is a good perennializer in our climate.
‘Chromacolor’ (Large-cupped daffodil) I have a hard time resisting the peachy-pinked cupped daffodils as well…I’d have to say ‘Chromacolor’ is the best of them. The huge flowers can reach 5-inches in diameter with an intense coral to pink cup. One-of-a-kind and gorgeous.
Sep 14, 2016
Once you get addicted to gardening, you’ll also find yourself addicted to certain plants. One such addiction of mine is the Iceland poppy. They never get boring, are always in style and I’d plant them year-round if they’d only cooperate.
Iceland poppies are technically a perennial, but behave as such only in the northernmost parts of the United States and into Canada. In our climate, Iceland poppies should be treated as a cool-season annual, or biennial, if you will. In Texas, it’s best to plant Iceland poppies in the fall, along with your pansies and violas. This allows them to put on a larger root system and thus produce a bigger spring show of blooms. Plants will bloom in the fall and until the first hard frost. Often, they will continue putting on blooms through the winter. Hard frosts will nip the blooms, but won’t hurt the plants. In spring, you’ll be rewarded with a burst of blooms in late February or early March, to accompany your tulips and daffodils. Plants will continue to flower until temperatures heat up in mid- to late May. Iceland poppies don’t like the heat and will die off with the onset of summer.
Iceland poppies make a loving spring companion to Mexican feather grass.
Every part of the poppy plant, from the silvery foliage to the unique furry flower buds, offers a bounty of interest. They are the perfect companion for other cool-season plantings such as parsley, kale, pansies and violas. In its natural state, Papaver nudicaule is usually found in shades of white and yellow. The recessive colors of orange, pink and red are brought out through selection, and all colors are generally offered as a mix in the garden center.
You can also plant Iceland poppies in the spring, but you’ll get a much better show from them if you plant them October through November.
Sep 10, 2016
Temperatures are cooling here in Dallas, especially at night. We even got a little more rain last night. This is your signal it's time to get planting! If you love Clematis vines, like I do, your plants will have a much easier time getting established if you plant them now through October, than if you wait until spring.
Clematis 'Ramona' growing in my garden.
Fall is the very best time to plant perennials, shrubs and trees in Texas. But, unfortunately, garden center inventories don't always offer the plants you're looking for, or the quantities you need. Why? Well, most homeowners still don't realize fall is a superior time to plant, so they just don't buy as much during the fall season. That means garden centers are wary of bringing in the kind of inventory they need to. It's a bit of a chicken and egg situation.
On this delivery, I scored Arabella, Clematis candida, Ramona and Snow Queen. I'm already drooling!!
That means you may need to turn to mail order companies to find what you're looking for, like I just did for some particular Clematis varieties I was seeking. Most garden centers only bring in a limited stock of Clematis in spring, and none in fall. So I was really please to find a beautiful selection available at Buy Clematis Direct. They even have some of the blue bush-like 'Arabella' Clematis that have been on my garden list for a while. They also have some lovely idea books on their website.
The condition in which mail order plants arrive can vary. So I was particularly impressed with the expert packaging on these plants, even with a double stack of flats in the box. Each plant was protected in plastic and paper wrap and hard dividers kept plant from being crushed. The plants are fresh and healthy.
Plant clematis vines in areas where the top of the plant will have sun for a good part of the day, but the root zone will be shaded by other shrubs or perennials. It's not a bad thing if clematis get a bit of afternoon shade in the heat of summer. Clematis vines are good for planting on small trellises, obelisks, mailboxes or other fixtures. They are not heavy or destructive, so don't worry about them damaging the support structure.
Clematis may remain partially evergreen in our winter climate, or they may die down do the ground with hard winter snaps. New growth will emerge the following spring. What the vines don't tolerate well is wet, soggy roots during the winter when soil temperatures are colder.
If you're going to mail order for fall planting here in Texas, you'd better do it quick, as many of these companies are in more northern locations; that means they'll run out of inventory sooner or stop shipping due to colder temperatures in their area. Buy Clematis Direct is in Florida, so you probably have a bit more time to check them out.
Aug 2, 2016
When rainfall and humidity show up, so does a bounty of purple. You may have noticed a bevy of Texas sage blooms around town for off and on a few times this summer, in conjunction with some unexpected summer rains.
What makes them bloom?
Texas sage respond to a couple of different signals that tell them it’s time to bloom. High humidity or sudden soil moisture before and after rainfall will push plants to bloom; seemingly overnight. Texas sage plants are sometimes called “barometer bush” due to this effect. The recent unexpected humidity and rainfall we experienced last week was just what your Texas sage plants have been waiting for.
Texas Sage ‘Rio Bravo’ in full bloom.
Texas sage are one of the prettiest and toughest of Texas native shrubs. Plants are mostly evergreen and produce stunning silver foliage that perfectly complements the lavender to purple blooms. There are a number of varieties to choose from, most growing to an average of 5-feet tall and wide. If you need something smaller, keep your eyes peeled for dwarf varieties such as ‘Thunder Cloud’. If you want something a bit more expansive and impressive seek out ‘Rio Bravo’. It grows 5 to 6-feet tall and wide and is a heavy bloomer.
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Texas Sage thrives in full sun and well-drained alkaline soil. They will tolerate a bit of shade, but too much shade will result in leggy plants that don’t bloom heavily. Supplemental water in summer will help plants grow faster and bloom more, but over-watering or poor drainage will kill Texas sage quickly.
Crimes against horticulture
When it comes to certain shrubs, au natural is the way to go. Texas sage is one such shrub. One of the worse horticultural offenses committed here in Dallas is the constant shearing of Texas sage shrubs into what I can only describe are large caterpillars…or balls. WHY? Please don’t.
SO…so wrong. Don’t plant shrubs that are too large for the space and you won’t have to butcher them.
1. Continual shearing of Texas sage will weaken them…and kill them.
2. You lose all the blooms when you shear them (so why plant them in the first place?)
3. They look terrible. Just, terrible.
So pretty please, put the hedge shears away and let these beauties do their thing.
As we head into fall, it’s a great time to start refreshing the landscape and adding new shrubs and trees such as Texas sage.