If, like me, you have only certain days and times that allow you to get out and enjoy your garden — you might decide to “dig-in” and carry out your plans even when weather conditions suggest doing otherwise.
Just brief periods of exposure to high temperatures can cause serious health issues, especially when you are exerting yourself. Make sure to increase your fluid intake — avoiding alcohol and/or sugary or carbonated drinks, since they can seriously heighten dehydration. Take shade-breaks often, to allow your body temperature to normalize.
Signs of heat-related illness include high body temperature, headaches, dizziness or confusion, nausea, rapid heartbeat and even loss of consciousness. Seniors, children and folks who are overweight or on certain medications (ask your doctor) need to be extra careful.
Don't cut safety measures when you are in a hurry or tired – accidents can happen in the blink of an eye, and the ramifications just aren't worth it! When using power tools, wear safely glasses, gloves, sturdy shoes and proper clothing to protect your body. If using loud equipment, protect your hearing with earplugs or headphones.
If using chemicals, please read and follow the directions! Applying too much, or even the right amount but in the wrong way can be dangerous to you, your pets and your plants and soil!
Be sure to protect yourself from mosquitoes and ticks, too. Use an insect repellent with DEET. Wear a long-sleeve shirt and long pants; tuck your pant legs inside your socks; and check your body thoroughly after gardening (and/or a hike). Make sure to dump any standing water around your garden or property, since mosquitoes can breed in just a capful of water.
And just as your Mom says, use your sunscreen! You need to reapply it often when working up a sweat outdoors. Also, wear sunglasses and a wide-brim hat to protect your eyes, face and neck.
Make sure to get regular medical checkups and a tetanus vaccination every 10 years. Tetanus, which lives in soil, can enter the body through a scratch from a thorn or a cut from garden shears or other tools.
Master Garden Bonnie Wagner recently sent out a list of other helpful tips: Make sure your tools are sharp so you don't have to put so much muscle into using them, and choose tools with long handles to avoid bending or kneeling whenever possible. If your task requires you to get up and down a lot, use a garden kneeler with handles, so both your legs and arms can help you change position.
Buy ergonomic tools that fit your hand and are designed to minimize strain. If you don't have the proper tool for the job, rent or borrow one. Don't try to make do with the wrong one. Use a wheel barrow or wagon to move around heavy or bulky items. Don't carry them with your arms extended in front of you, since that increases strain on your back. Consider hiring someone to do dangerous jobs such ladder work and or using power tools with which you aren't familiar. You'll find it to be money well-spent!
Gardening is an excellent way to stay healthy both physically and mentally, provided you take care of yourself and actually stop once in a while to smell the roses!
by UC Master Gardener Rebecca Jepsen
Photo courtesy of Rebecca Jepsen
This article first appeared in the July 23 issue of the San Jose Mercury News.
Benefits of seed starts
Some plants, such as lettuce, have tiny seeds that need light to germinate. Planting these directly in the ground often leads to losses due to wind dispersal or rotting under too much soil. Starting these plants in containers makes it easy to monitor them and keep the soil moist until the seeds sprout.
As seedlings grow, they can become root bound, which means the roots start wrapping around the inner wall of the container. Before this happens, you can up-pot or transplant those seedlings. Up-potting means moving a seedling from a small container to a slightly larger one. Transplanting means moving the plant to where it will live out its life.
When not to transplant
Plants that are fruiting, flowering, infested, or infected should generally not be transplanted. New transplants need to be able to focus on building strong root systems. Also, just as some people are more sensitive than others, some plants do not take kindly to being transplanted. The following plants should be sown directly into the ground whenever possible: artichoke, beans, beets, butternut squash, carrots, corn, cucumber, dill, melons, onions, peas, radishes, summer squash and zucchini.
How to transplant seedlings
For many vegetables, you can transplant seedlings with the first leaves below the soil line. Very often, these meristem tissues will transform into root tissues, adding nutrients to the plants. Once the seedlings are a couple of inches tall, prepare their new home, making sure the soil is loose.
The South Bay's heavy clay can form an impenetrable barrier to new roots if it is left smooth from a trowel or shovel. Be sure to rough up the edges of the planting hole. Then, follow these steps to successfully transplant the seedlings:
1. Place your hand over the container with the plant between your fingers.
2. Gently turn the pot on its side or upside down, tapping the bottom with your other hand to knock the soil loose.
3. Cup your first hand to hold onto as much of the soil as possible.
4. Examine the roots and spread them out if they have started wrapping around themselves.
5. Slowly turn your hand, allowing the root system to roll into the hole.
6. Ensure all roots are covered with soil. If peat pots were used, make sure all of the peat is covered, as well.
7. Gently pat the soil down to eliminate any big air pockets. (Most roots don't like being exposed to air.)
8. Water thoroughly.
Caring for new transplants
New transplants should be treated gently for a few days. To help a young seedling thrive in its new environment, in a process called ecesis, be sure to:
Harden off seedlings before transplanting; water regularly, allowing the soil to dry out between waterings; do not use insecticidal soap or other treatments right away; feed transplanted seedlings with fish emulsion or phosphorous a few days after their ordeal; protect seedlings against cutworm damage by inserting a paperboard ring a couple of inches into the soil; provide wind protection by cutting the bottom out of large plastic jugs and placing them over vulnerable plants.
Visit the South County Teaching and Demo Garden, at St. Louise Hospital, 9400 No Name Uno. For more information, visit Events and Classes or call (408) 282-3105 between 9:30 a.m. to 12:30 p.m.
by UC Master Gardener Kate Russell
Photo: Copyright © 2016 The Regents of the University of California. All Rights Reserved.
This article first appeared in the May 24 – June 6, 2017 issue of Morgan Hill Life.
Thanks to the rain, mosquitoes are thick
Russ Parman, assistant manager with the Santa Clara County Vector Control District, says because “of the abundance of rain we had earlier in the year we still have areas of standing water and damp environments that serve as perfect breeding grounds for mosquitoes and other flying pests.”
About 19 species of mosquitoes have been detected in the Bay Area.
By using planes equipped with sophisticated cameras, the district can spot problem areas from 5,000 feet. A recent trip detected 700 stagnant swimming pools in a 130-square mile area where there already were 1,500 pools known to exist.
Field technicians go door-to-door contacting owners about the pools and telling people about options.
Vector control districts will provide free mosquito-eating fish to those who no longer want to use or maintain their pools. Pool owners also can use a variety of control products or they can either get the pool back into swim condition, fill it in with sand, or remove it.
In the Bay Area the most common mosquitoes are the house mosquito (Culex pipiens), a short-range flyer of only a mile or two, and the encephalitis mosquito (Culex tarsalis), which can travel up to 10 miles.
Both are the primary vectors for West Nile virus. They generally feed on the blood of birds but occasionally bite humans and other mammals as well, which can spread the virus.
The mosquitoes are most active just after sunset and just before dawn.
Recently, the container-breeding, invasive Aedes genus mosquitoes have become a significant concern. They are easily transported by hitch-hiking on vehicles and containers, and can breed in as little as a bottle cap full of water.
Unlike the more common mosquitoes, Aedes mosquitoes bite during the day, love to feed on humans and can transmit several severe and sometimes fatal illnesses including Zika, chikungunya and dengue viruses . They can breed indoors as well as outdoors.
Two of concern are the yellow-fever mosquito (Aedes aegypti) and the Asian tiger mosquito (Aedes albopictus). The yellow-fever mosquito is deep brown with a fiddle-shaped marking on its thorax and has prominently banded legs. The Asian tiger is jet black with a white stripe down the middle of its back and also has banded legs.
The invasive Aedes mosquitos are now well established in both Central and Southern California. With the frequent travel and transport of vehicles and goods, experts believe it is only a matter of time before they take hold in the Bay Area. In recent years there have been brief infestations in both San Mateo and Alameda counties.
Along with increased mosquito activity, you might also be seeing swarms or large populations of midges. Midges (Chironomidae) resemble mosquitoes but are actually small flies. You might see mating swarms in open areas. Although they can be a nuisance in large numbers, they do not bite.
Take a walk around your property and empty any collections of standing water you find. Check all plant pots, trash cans, rain gutters and any water catchment systems you may have set up. As the temperature starts to heat up, we need to be even more vigilant.
If you see these mosquitoes, find dead birds, or know of unattended pools, call the district in your area.
- Santa Clara, 408-918-4770
- Contra Costa County, 925-771-6196
- Alameda County, 510-783-7744 (In Albany, call 510-567-6800.)
by UC Master Gardener Rebecca Jepsen
Mosquito Illustration: California Master Gardener Handbook
This article first appeared in the June 25 issue of the San Jose Mercury News.
Blame the drought followed by ample rain
Local nurseries and growers are scrambling to keep up, but demand — especially for specific cultivars — has caused an extreme shortage of many sought-after plants.
With most of the drought water restrictions now removed, people are rushing to replace the plants they lost in the drought.
Many people also took advantage of rebates and took out all or part of their lawns. To qualify for a rebate from the state or local water providers, the lawn had to be replaced with plants from an approved list. Each plant was rated for its water efficiency and rebate programs required homeowners to plant a set percentage of their yard and obtain a certain point value based on the plants they chose.
Plants with the highest point values were in high demand and sold out quickly. Growers have been scrambling to catch up, but the heavy, frequent rains have put local growers behind in their planting, which has significantly delayed availability.
Viktoria Gleason, Green Goods Buyer for Summerwinds Nursery in San Jose, says homeowners are driving what growers are producing.
“Now,” she says, “even national growers like Monrovia are growing California lilac, manzanita, ceanothus and even Western redbud. That wouldn't have happened 10 years ago.”
Acacias, especially ‘Cousin Itt', Chinese pistache and some crape myrtles, were at the top of the point list and are now virtually impossible to get.
If you are looking for great dry shade shrubs try Loropetalum (fringe plant), which comes in many sizes and colors. Many cultivars of Pieris (lily of the valley) offer bicolored leaves and dainty, bell shaped flowers. There are salvias in every size and color, and even one for deep shade.
Trees that should be readily available include Tristania laurina (water gum), which is slow growing with fragrant leaves; Arbutus ‘Marina' (strawberry tree), which has beautiful red bark, profuse pinkish white flowers and red edible fruit that provides interest all year; and Olea (European olive), which is well-suited for our Mediterranean climate. Options include fruiting, non-fruiting and even a beautiful weeping variety, Olea ‘HidShurtleff.'
Wendy Calhoun, Buyer for Yamagami's Nursery in Cupertino, says in addition to picking the right plant for the right area, people need to understand their irrigation systems.
“Most people apply too little water, way too often,” Calhoun says.
Plants thrive with infrequent but deep watering. A good rule of thumb, she says, is to apply twice the container size of water once a week. A 1 gallon plant would get 2 gallons of water per week. In extremely hot weather you might need to double that amount twice per week, but no more.
Proper watering is the most critical factor in growing healthy plants. Most plants, especially drought tolerant ones such as lavender, rosemary and California natives, fail in their second year, Calhoun says, because of over watering.
Curtis Ferris, General Manager at Soquel Nursery Growers in Soquel, says the drought has actually been good for growers and consumers.
“People are replacing their thirsty lawns with much better options and we hope they continue to do so,” Ferris says.
by UC Master Gardener Rebecca Jepsen
Photo: Rebecca Schoenenberger
This article first appeared in the May 20 issue of the San Jose Mercury News.
Soil temperatures might still be too cool
Like many of you, I bought my tomatoes and peppers at one of the Master Gardener's spring market sale. It was so cold and rainy that I wasn't overly enthusiastic to get out and work in the garden so I grouped my plants together, sat them next to the garden shed for a little warmth and protection and decided to let them be.
Then, ignoring what experience has taught me, I decided to put them in the ground. And I paid a price for my impatience.
Planting too early in cooler temperatures can cause stunted growth, wilting, surface pitting, foliage necrosis and increased susceptibility to disease. Low soil temperatures can stunt plant growth and prevent root development. Most summer vegetables like soil temperatures of between 55 and 65 degrees.
Because my plants had just come from a greenhouse, where they were pampered with lots of light, water and warmth, they really needed to be hardened off before planting. Hardening off means to keep your seedlings in protected area, such as a porch or garage, and gradually acclimate them to their new environment, placing them outdoors in a shady spot for a couple of hours and slowly increasing the time. Plants that aren't properly hardened off are much more susceptible to sun and windburn as well as breakage.
We also recommend planting your seedlings into larger containers as soon as you bring them home.
So what happened when I didn't follow the prudent planting process? Well, one of my tomatoes snapped in half and I have a couple of peppers that look very much like the sad little tree in “A Charlie Brown Christmas.” I'll be starting over with some new seedlings and a bit more patience.
Tips for planting
- Plant your tomatoes deep (up to leaves you didn't pinch off)
- Amend soil with a high-quality compost (if needed)
- If planting in containers or raised beds, add slow release, organic fertilizer and compost
- Add tomato cages when you plant, if you wait until they need the support you can damage the roots
- And remember, peppers and tomatoes need 6 to 8 hours of sun. They also like well-draining soil and a pH of 6.5-7.0.
- Mulch around plants to help retain moisture and cut down on weeds.
- To avoid fungal issues such as fusarium and verticillium wilt, don't plant in the same area for 3 years, if possible.
- To avoid blossom end rot, make sure to provide consistent and deep watering.
- One of the most common tomato ailments is tobacco mosaic virus so don't smoke in or near your garden.
- Look for plants that are labeled disease resistant.
- The rains are tapering off, so make sure to keep young plants well watered. Peppers like to be kept evenly moist, but once tomatoes and peppers start fruiting you can significantly cut back on their water.
by UC Master Gardener Rebecca Jepsen
Photo: Rebecca Jepsen
This article first appeared in the April 30 issue of the San Jose Mercury News.
