Very Bad Houseplants

P71230Just because it ‘can’ be grown as a houseplant does not meant that it ‘should’ be. That is a lesson that Brent and I never learned in college. He and I were roommates in the dorms at Cal Poly in San Luis Obispo, which, as you can imagine, was a problem. Our room on the top floor of Fremont Hall was known as the Jungle Room. It was so stuffed full of weird houseplants, as well as a few plants that had no business inside. We had a blue gum eucalyptus bent up against the ceiling, an espaliered Southern magnolia, a Monterey cypress, and a herd of camellias that we rescued from a compost pile on campus.

After college, our own homes were no better. Because my dining room was rather small, Brent gave me tall weeping figs that had unobtrusively bare trunks down low, and plenty of fluffy foliage pressed up against the ceiling; a technique we did not quite perfect with our Jungle Room blue gum. I had a giant yucca in the guest suite, a redwood in my bedroom, king palms in the parlor, and a lemon gum eucalyptus over my desk in the office. The bathroom was the worst, with pothos and Algerian ivy hanging over the shower curtain, and billbergias up over the shower. A pair of small birds nested in the billbergias, and before I realized that they were there and evicted them, they started a family!

At least Brent kept most of his plants outside where they belong. The staghorn ferns grab onto the walls when they get the chance. Wisteria vines grab onto anything else. The flame vine climbed up the chimney (appropriately), and before Brent knew it, had sneakily spread to the opposite side of the parapet roof! Then there was the giant timber bamboo. Yes, that is what I said; giant timber bamboo. I know what you are thinking right now, so there is no need to say it.

There is a narrow space between north side of Brent’s home and the concrete driveway next door. It is almost three feet wide. Brent though that if he planted the bamboo there, it would not get to the other side of the driveway. He was actually correct.

Did I ever mention how vain Brent is? Well, that is another topic for another time. I will say for now that he has more clothes than his teenaged daughter Grace. A lot more. They do not all fit in his big closet. He hangs some of his longer coats that he does not need very often in Grace’s much smaller closet. One day, he was reaching around the clutter that is common in a teenaged girl’s room, and groping for one of his coats in Grace’s closet, when he grabbed a hold of something that should not have been there. He was not certain what it was at first, but when he found his coat and pulled it out, a few dried bamboo leaves came with it and fell onto the floor!

The bamboo did not even try to go under the neighbor’s driveway. Instead, it went under the foundation of the house. Where it came up, it had nowhere to go, so somehow weaseled in next to a water pipe, and followed it up behind the bathroom washbasin. Once inside, it somehow weaseled past a valve access panel behind Grace’s closet, and straight up to the ceiling. What is even funnier is that Grace knew it was there, but figured that it was just another one of Brent’s crazy landscaping ideas!

Just in case you are wondering, giant timber bamboo is a very bad houseplant!

The bamboo is gone now. It got so tall that the wind would blow it against the terracotta tiles on top of the parapet wall. Also, the foliar litter was too messy on the parapet roof and the neighbor’s driveway. It did not contribute much to the landscape anyway, and shaded only a driveway that is seldom used.

Poppies

P71213+K1Not just any poppies; California poppies, the state flower of California.

So why the picture of an old cinder block wall on the edge of an unkempt and weathered parking lot behind the old County Bank Building? Well, right there in the middle of the picture, where the lowest course of block meets the edge of the pavement are a few weeds, and some of these weeds are poppies showing how resilient they can be.

California poppies are opportunistic. They grow fast and bloom when they can. For most, that means that they bloom as the weather starts to warm up at the end of winter. For others in irrigated gardens, they can bloom in phases through summer. Some do their thing quickly as soon as they get a bit of moisture from the first autumn rains or even dew. They know what time of year it is, and that the weather will not likely get hot enough to cook them; so they bloom and throw their seed for another generation in a few more months, or maybe many months from now. They adapt. That is how they live on the edges of forests of the Santa Cruz Mountain, to interior valley chaparral, to the Mojave Desert. They are a remarkable specie.

Remember the poppies in the Wizard of Oz? There are several theories about what those poppies represent, and why the put Dorothy, the Cowardly Lion and Toto to sleep without affecting Scarecrow and TinMan. Duh, Scarecrow and TinMan do not breath. They can not inhale the narcotic produced by the poppies. Even if they did, they lack the physiology to be susceptible to opiates.

There is a significance to poppies blooming today, the same day I wrote about the gingko, on December 13; but this ain’t Oz.P71213+K2

Planting Cool Season Cover Crops

71129thumbTraditional horticultural technology that was so common in the orchards, that were likewise more common, was more practical than so much of what we do in our modern home gardens now. Orchardists got good insects to take out the bad insects. They got mulberry trees to distract hungry birds from maturing apricots and prunes. They even got weedy annuals to control other weeds.

Once it got established, mustard grew wild under many orchards. It self sowed so efficiently that it did not need to be sown. It grew fast, and shaded out other nastier weeds. Anyone who wanted to pick greens could take all they wanted without setting it back. It was sometimes tilled in early, or cut early and left on the surface as mulch, but was probably most often left to die back naturally.

Besides controlling weeds, the mustard improved the soil and kept it friable, both by dispersing roots through it, and also by decomposing into it. Other types of cover crops help limit erosion through winter, or improve soil fertility. All are very easy to plant and grow, and almost all get all the water they need from rain through winter. They only need to be cut and tilled when they are done.

Of course, they are all ‘done’ at different times. Orchard mustard that never gets cut or tilled is never really done. It just perpetuates itself. Cover crops in home gardens are done when we say they are done, before the space is needed for something else. Some should be cut before self sowing and becoming more a weed than a cover crop, whether or not the space is needed right away.

Cover crops get planted by simply broadcasting seed onto freshly tilled soil that will not be used for anything until next year. After seed is broadcast, the soil can be raked lightly to cover the seed. If it is not watered right away, the rain will take care of it. Fava beans, oats, barley, millet, clover and annual rye grass are some of the more familiar cover crops. Sesame and sorghum are rare.

Freeway iceplant and old varieties of common geranium (Pelargonium X hortorum) can function as prettier perennial cover crops. The iceplant can be cut from established colonies and plugged as short cuttings about four inches long. When geraniums get cut back, the pieces can likewise be processed into cuttings. Unlike annuals, these would get removed when their space is needed.

Where Has All the Mistletoe Gone?

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Locust and alder trees in my region are commonly infested with mistletoe. Some were severely infested. A few of the locust trees downtown were actually unsightly because they are so stressed and sparse from mistletoe infestation, and also because they were so full of big shaggy mistletoe bushes that obviously do not belong there. Now, viable mistletoe can not be found. Even the carcases of the big dead mistletoe bushes are hard to find. They seem to have died and deteriorated before anyone noticed. The formerly infested trees are noticeably healthier, and producing more healthy foliage than they normally do, partly hiding any remnants of dead mistletoe.

No one here seems to know what happened. Is this part of their natural life cycle? Is there something that sets them off to die all in the same season like some specie of bamboo do? Is there a disease or insect that we should know about? Is this isolated to our region, or is it happening elsewhere as well?

I know I should be pleased that the mistletoe is gone, even if it is only temporary. It is such a destructive parasitic weed! The concern is that we just do not know what happened.

Years ago, Phytophthora ramorum started killing tan oaks. At first, not many of us minded. After all, tan oaks are considered to be trashy trees that clutter otherwise pure redwood stands, or compete with more desirable oaks. Dead tan oaks were better than live ones, and only needed to be cut and split to be sold as seasoned firewood.

The following year, the same disease started to kill coast live oaks. Then we had a problem. Coast live oak is one of the two most majestic oaks in our region (and the most majestic in the Santa Cruz Mountains where the valley oak is uncommon). It took a long time to identify the disease because the ambrosia beetle, which is a secondary pathogen, was initially blamed for the widespread death, which became known as Sudden Oak Death Syndrome, or SODS. It took a few years for the worst of the SODS epidemic to subside, and it continues to kill oaks sporadically.

That is why it is hard to ignore what is happening with the mistletoe, even though we really should be pleased to see it go.