13,520 Garden Web Discussions | Perennials
Phylis, depends on the plant. Most of the scabiosa, some of the aster, will benefit from the 40F temps of your nights that you describe and germination could be improved by sowing those while its cool. Echinacea aren't damaged by the cooler temps, but they may not necessarily need it and wouldn't germinate until conditions are warmer. The cool moist overnight temperatures could help to break dormancy of rudbeckia seed too....
I'll leave the vegetable sowing to someone else who grows in your zone, its too chilly to consider here farther up the coast. And last year, we had a cold snap in early February that was a surprise, a definite hard freeze into the teens a few consecutive nights.
See which specific varieties you have, then check them here for germination conditions and temps:
Here is a link that might be useful: Germination database
I have some rubekia that has sprouted a couple of weeks ago in the garden. they are small an not growing . I hope they are working on their roots. We have a few warm day and then it is cold again. highs right now in the upper 60's and low around 40. I expect a couple more hard freezes. Most of mine are sewn in the ground. I imagine that in CA. you want to get things going as early as possible to take advantage of all that beautiful rain. We are having the first dampish winter in a long time and I have been seeding perennials all over and seeing great results. I am talking about drylands gardening. I do not water and depend on the rain. Many of the ones that I use seem to come up when it is a bit cool . i.e. the penstemons. I am seeing them pop. God, you have to look carefully. I did get some wild asters popping to. I am seeing Dalea purpuria and Oenothera macrocarpa showing leaf. Generally , in Texas I try to get many perennials seeded in late fall and winter. I do suggest looking at germination temperature tables.
If you are in doubt, reserve some seed and do some later. I have seen that the west coast is projected for a warm winter.... if you can believe that. Believe it at your own peril. I am projected for 3-5 degrees below normal winter so I will throw some leaves over the babies if the cold one comes. So far it has been cool for longer but no real vicious cold snaps. It is still well above are our average minimum . Keep your eye on the 10 day forecast if you ate going to play the seeding outdoors game. I am seeing all sorts of seedlings in my garden sprouting . some I want and some I don't.
They don't die back at all here. I cut them back in late summer if they have those long runners because I think they look ratty, maybe that puts the energy back in the center? They grow new leaves in fall & winter that are evergreen, right now they are all thick and green. I've relegated them to the less attractive dry border -- the tree roots competition part of the garden -- where the really tough stuff is needed because they are so easy to grow anywhere and they take a lot of dry shade well. Anything like that ends up in that spot.
TR10 - I had never heard of milkweed vine so was curious to learn about it. Some Googling around turned up the article in the link below - it looks like this vine is indeed important for the Monarchs in the central plains area where it grows. I also found lots of references to a somewhat similar-looking invasive vine called swallow-wort that is detrimental to the monarchs - see:
http://www.fs.fed.us/wildflowers/pollinators/Monarch_Butterfly/documents/Swallow-wort_flyer_MJV.pdf
The decline of the Monarchs is very obvious here the past few years, so I hope they will be able to make a recovery eventually!
Here is a link that might be useful: Milkweed vine and Monarchs
Woodyoak, I'm pretty sure vine milkweed covers a large area of the US & seems like I read it grows native all the way up into Canada.
I believe planting milkweed makes people feel good and like they are helping and to a small degree I imagine it does help a small percent of them. Still, I can't help but think its just a tiny drop of 'fix' in a big bucket toward improving the larger problem of whats going on. A bigger problem is the situation in Mexico with the "handful" of remaining wintering shelter areas warm enough for large numbers of them to survive so they can make the yearly migration at all and make use of all that milkweed being planted in peoples yards.
I certainly have the plants growing here to attract butterflies but we have been pretty short on many types of butterflies, not just monarchs, and those are just as big a concern to me even though they don't get the press coverage. Some years are good for butterflies, some bad. Sometimes fall is heavy, sometimes spring is, sometimes neither. It varies from year to year.
I'm editing to add that the terrible and lengthy drought we've had throughout the mid section, which we are hopefully coming out of, probably did more to reduce the populations than tropical butterfly weed planted in peoples gardens which by the way isn't winter hardy except in the deep southern zones.
Here is some good news.
Here is a link that might be useful: http://www.natureworldnews.com/articles/9337/20141002/monarch-butterflies-expected-rebound-mexico.htm
This post was edited by TexasRanger10 on Sat, Jan 17, 15 at 18:24
There were some casualties but the crepe myrtles made it through unscathed. In my whole gardening life there has been only year they didn't but that was because an early arctic front hit in mid December after a very long & warm fall and nothing was hardened off, most of them recovered from the roots however and started over from scratch. In Kansas, they all died. Go figure. I never can.
The only thing I lost in 2011 was a Santa Rita cactus and a couple of zone 8/9 agaves. Compounding the problem with regular blasts from the arctic north is that there is rarely snow on the ground, if you can imagine. Its also very lively in spring when the warm moist gulf air regularly crashes into the dry cold stuff from up north leaving us at the mercy of these two extremes, its earned us the title "Tornado Alley", OKC is dead center of that area. I probably sound like a broken record but people around here do talk about weather a lot.
It makes me wonder about plants that survive just fine here but seem to succumb to cold further north judging by what people post. Maybe its about moisture along with duration because we certainly do get very cold for several days but usually warm back up again-- up and down, up and down.
How do you know you are getting the runnerless ones? Are they advertised as that? Can I look them up that way? The ones that I received in a trade had small berries, regular sized plants/leaves, and did eventually produce runners after a few years.
The runnerless ones ones sound like they would be great front of the border plants. One more question, mxk3. Are they ever bearing or June bearing?
Thanks for responding,
Linda
Yes, they're usually advertised as runnerless. I bought mine at a local nursery many years ago in the perennial section. I've seen some plants on-line that are marked runnerless (such as the Golden Alexandria). The ones I have are ever-bearing, though they don't produce an abundance of fruit (well, at least I don't think they do, but maybe the birds or critters get to some of them before I do...). I don't grow them for the berries, though - I enjoy the foliage, as I mentioned it's impeccable.
Kathy - I live in Santa barbara and was planning on planting Ceonuthus but I have read a few different articles that they attract "swarms" of bees and at certain times during the year you literally cannot walk too close to them. We have dogs and our garden is not so large that we can afford to avoid certain areas of it. Would you please share your experience?
I've figured it out. Two different plants. What confused me was one online nursery who said that the Aster had been reclassified as Kalimeris, which made me wonder if all descriptions by two names were the same plant. But the Aster is larger, more spreading, and late blooming, while the Kalimeris is a bit smaller, definitely more likely to stay in bounds, takes a bit of shade, and blooms early. 'Edo Murasaki' and 'Ezo Murasaki'--definitely asking for confusion, esp. given the reclassification of many in the Aster genus.
Re Kalimeris and spreading.
I've had Kalimeris incisa 'Blue Star' which I replaced due to it's rapidly spreading runners.
The runners were very high in the soil and therefore easy to pull up; however, it didn't go well with perennials maintained closely together.
All of the asters which we have (at least) are very clump-forming, though they do require periodic division.
I've found Boltonia asteroidea 'Jim Crockett', which is similar looking, a better plant than K. incisa 'Blue Star' for our garden.
I have noticed a common thread here today. Plants that have caused injury are generally not invited. For me that means barberry and roses, yes roses. I love them in other yards but not in mine. To me not worth the blood sacrifice to have them.
I get texas ranger liking his grasses alot. If I lived in Texas they would be my favorite, cactus would take some serious thought, blood sacrifice whether accidental or not.
The older I get the less a like the free seeders like echinacia( spelling) and similar plants. Lower maintenance is my favorite now. I am also a fan of plants with few pest problems.
I hate yews. A bad winter here gives them winter burn and you have brown foliage to look at forever.
Sherry
I have had Chocolate Chip Ajuga for going on 7 years and it is well behaved. If it moves more than you like, just pull it up or dig up around the outside of the area where you want it. I have no problem getting rid of extra pieces since the neighbors like it too!
Plants that I don't want here are some of the usual suspects:
Bouncing Bet - still pulling and spraying starts after several years
Species Hardy Geranium - also pulling out new seedlings several
feet from the original plant. It only blooms for a short time and
then spreads its seed and runners all over the place.
Obedient Plant - never tried Miss Manners yet though
Bishops Weed
Older Variety Purple Coneflowers-I grow the newer different colored ones and do not have a problem pulling the few volunteers that come up. The older pink ones were a disaster to keep from seeding every where.
Goldsturm Rudbeckia-a few plants tried to take over a whole bed. In two years, I had several plastic garbage bags full when we dug them up to give away.
Linda
Well, I notice that I misread and posted before about something that bloomed where it shouldn't have, and so sorry about that. I can say that I have a variegated sage plant that has survived three years even though it was marked zone six.
Regarding Buckthorn:Can you ring them and paint some poison on the bases? Call up your agri agent and see what the controls are. I only deal with Mountain ash cedar.I have been out chain sawing and clipping for a week now. I bring in the new year every year doing this.
Basal bark application of herbicide would probably be easiest. You won't have to cut out the stalks from amongst your hedgerows. IYou need to use the oil-based version of triclopyr and paint all around the stems, then it will be absorbed through the bark. This can be applied during the winter.
If you do cut them out, you need to apply a small amount of herbicide to the cut stumps, so that they won't resprout (that is what I usually do).
Here's a recent thread on the tree forum with some info:
Here is a link that might be useful: Winter herbicide for buckthorn
This post was edited by terrene on Tue, Jan 13, 15 at 0:32
I planted a serious bulb garden this fall which included mixed lilies. The warm spell we had encouraged the lilies to reach a height of 6 inches. Then we got hit with a freeze for 2 nights in the teens and the parts of the lilies above ground were frozen and bent over as if broken. They were brown. Did I lose my lilies or will they try to emerge again?
You really should start your own thread and not hang on the bottom of someone else's.
The lilies will be greatly weakened and may or may not send up new growth this year, but should survive if undisturbed. It may take 2 or 3 years to recover from this and build up their reserves again though.
Nice to see your bright red and yellow tulips. I understand that with the weather and other difficulties they must lift your spirits when they greet you each day.
Snow in crete? that's probably rarer than an earthquake. Beautiful color.