Categoría: césped

Climate Change and Native Lawns

En Por durhammastergardenersEn Durham NC, garden design, Gardening information, gardening NC, lawns, Natives, Uncategorized

By Eric Wiebe, NC State Extension Master GardenerSM volunteer of Durham County

This blog post serves as a follow-up to a previous discussion on climate change and its impact on gardening practices, which can be found aquí.

Drawing inspiration from a presentation by Ben Bergmann, the Horticulturist at the City of Durham, this article focuses on applying lessons learned from public spaces in Durham to our own yards. Specifically, it addresses the shift away from a turf grass-centric view of yards towards a broader perspective that fosters a healthier relationship with our environment, while also addressing the challenges posed by global climate change.

Rotary Memorial Park, City of Durham. A public space using a diversity of native plants and an inspiration for home gardeners. (Image credit: Eric Wiebe)

The concepts discussed here fall under various names, including native lawns, meadow lawns, and green or sustainable landscaping. While these terms may differ slightly in their goals, they generally advocate for moving away from turf grass-dominated landscapes towards ones that feature native plants and other species requiring less water, chemicals, and maintenance. Alternatives to lawns include a diversity of plants such as bunched grasses, sedges, and forbs. Succulents and cacti can also be used when appropriate.

From Left to Right: 1) Schizachyrium scoparium – Little Bluestem. An example of a grass. (Image Credit: NCSU Plant Toolbox:CC BY-SA 3.0), 2) Carex cherokeensis – Cherokee Sedge. An example of a sedge. (Image credit: NCSU Plant Toolbox CC POR 2.0). 3) Trifolium pratense – Red Clover. An example of a forb. (Image credit: NCSU Plant Toolbox CC BY-SA 3.0).

Plant diversity is key, as each type of plant can serve a different function in the landscape. While grasses and sedges are typically monocots, forbs are dicots without woody stems, such as clover, violets, and asters. Having different plant types allows for various niche situations such as sun exposure, moisture levels, and dry areas.

Two homes in Durham, NC that have replaced the traditional front lawn with various plants including many types of succulents, such as cacti and Euphorbias. (Image credit: Marcia Kirinus)

While designs influenced by these principles may incorporate hardscape elements, they predominantly focus on living plant matter. Incorporating diverse plant life not only expands the aesthetic possibilities but also ensures that other ecological concerns are addressed. For instance, some roots are deep and help stabilize areas prone to erosion, while others enhance water management by absorbing rainfall quickly, thus preventing local flooding. Plants also have a buffering effect on direct and radiant heat, lowering the local temperature around your house. They can support ecosystems, including pollinators, and aid in carbon sequestration by locking carbon in their biomass.

Carbon sequestration, in particular, plays a vital role in addressing climate change by preventing the release or removing carbon from the atmosphere. While it’s true that all plants, including turf grass, sequester carbon, the practices associated with turf lawns are less than ideal. Turf grass clippings, for instance, often end up in landfills where they produce methane, a potent greenhouse gas. Additionally, the maintenance of traditional turf lawns requires significant energy inputs, primarily derived from carbon-intensive processes. Given the current water scarcity in many regions, prioritizing water use is crucial, making the watering of turf grass a less sustainable option.

The overarching goal, therefore, is to prioritize plants that store more biomass over longer lifecycles and to adopt maintenance practices that minimize water, chemical, and energy inputs. While it’s understandable that homeowners may desire some lawn space for various activities, such as recreation or socializing, it’s essential to consider the amount of space actually needed for these purposes.

Structuring your garden with plants for birds. Note all canopy layers serve a function. (Image credit: Audubon Society of Northern Virginia)

Consider opting for a ‘meadow’ lawn instead of a traditional lawn. A meadow lawn is where you let whatever green plants and grasses grow and then mow for walkability. This is one step better than eliminating everything green except fescue. A meadow lawn requires the lowest amount of inputs of water, synthetic chemicals, and power equipment to maintain. Other things you can do if you need lawn space include using the mulch setting on your lawn mower and allowing for the clippings to be reincorporated back into your lawn. A great inspiration for the meadow lawn is given at The Cornell Botanic Gardens. They discuss in deeper context the application of native lawns and provide additional educational materials to get you going on your project.

It’s crucial to ensure that whatever species you choose are well-suited for your local climate and situation. Don’t forget that locally in Durham, NC, our USDA plant hardiness zone shifted from zone 7b to zone 8a. The rest of the country has also shifted, so please see what your new plant hardiness zone is.

In conclusion, by embracing sustainable landscaping practices, we not only contribute to mitigating climate change but also create more engaging and environmentally friendly landscapes around our homes.

We hope the resources provided below will inspire you to explore sustainable planting options for your yard, fostering a more resilient and captivating environment.

Recursos e información adicional:

Enlace breve del artículo: https://wp.me/p2nIr1-4wg

March To Do in the Garden, 2024

En Por durhammastergardenersEn annuals, fertilizer, gardening, Gardening calendar, Gardening information, lawn care, lawns, Perennial, pruning, Uncategorized

By Gary Crispell, NC State Extension Master GardenerSM volunteer of Durham County

OMG! Was February wild or what? It was consistent in its inconsistency and that’s about all there is to that. Don’t look now, but it is March. Not the parade kind of march with bands and floats and stuff. March as in “Look at all the green things coming up in the garden!” That March. The garden wakes up in March and stretches like a dog after a nap.

Pansies provide a reliable punch of late-winter and early-spring color in your containers and landscapes. (Crédito de la imagen: Gary Crispell)

The Accidental Cottage Garden (ACG) is still hibernating for the most part. There are some grape hyacinths (Muscari armeniacum) in bloom, and the saucer magnolia (M. soulangeana) is opening just in time to get frosted. We’ve been here six years now, and we got to enjoy that tree in full flower once. It would really prefer to be in Wilmington, but the bus ticket is too expensive. We must depend on the pansies (Viola x wittrockiana) on the deck for floral color outside right now. But not for long. There are truck loads of perennial rosettes out there. It will be a grand adventure seeing who has returned and who was just resting preparing to show off.

(Left to right) Although the ACG is still sleeping, the saucer magnolia (M. soulangeana) and grape hyacinths (Muscari armeniacum) are erupting with color, and tiny green basal rosettes are peeking out from the soil and promising more spring flowers to come. (Image credit: Gary Crispell)

We have attained meteorological spring, so get out those garden gloves and hat. Locate the sunscreen just in case, and don’t forget the liniment and heating pad and ice packs. Just being real here. Let’s go work in the garden before the insects wake up.

cuidado del césped

It is time to fertilize cool season grasses (tall fescue, bluegrass, perennial rye). A slow-release high nitrogen (the “N” /first number on the bag) fertilizer will give you the greenest lawn into the summer. These grasses typically want to go dormant in the heat of summer (July and August), so unless you want to water them a lot during that time, this will be the last time to fertilize them until late August/early September.

(Left to right) Images of large crabgrass (Digitaria sanguinalis) and smooth crabgrass, (Digitaria ischmaemum) which typically germinate March through May in North Carolina once soil temperatures rise to 53-58 degrees. (Image credit: NC State University Turf Files)

Preemergent crabgrass control should be applied between the time the forsythia (Forsitia intermedia) bloom and the time the native dogwoods (cornus florida) bloom. Later than that and the soil temperature will be warm enough that the crabgrass will have already germinated.
Mowing can commence whenever it seems appropriate. You know, like when the lawn looks raggedy and the soil is dry enough that the mower won’t leave ruts. Mow to a height of 3” to 4.” That height allows the grass blades to shade the soil (read root zone) and protect it from the heat of summer. It also helps weed control by preventing enough sunlight for weed germination and growth. Win, win. Let the clippings return to the ground unless they are too long (Waited a bit between mowings, did we?) or wet and clumping (and we are mowing the grass when it’s wet, why?). Clippings do not belong in the landfill. If leaving them on the ground isn’t an option use them in the compost pile or as mulch.

Fertilización

(Other than the lawn): Green things that can be fertilized this month include shade trees, shrubs, and spring-flowering bulbs. Green things that should not be fertilized this month include St. Patrick’s Day revelers and leprechauns. Moderation is the key here. (Take note revelers.)
Asparagus beds should be fertilized early in March before the new spears appear. Work some fertilizer into the veggie garden bed(s). Lime may also be worked in now if your Soil Test so indicated. It will take 3 to 6 months for the calcium to become available to the plants, but that should be just in time for the June tomatoes and great timing for the fall garden. Besides, if you don’t do it now, when will you do it? (Note: While there is no time like the present to remind you of the importance of testing your soil, please note that soil testing at no charge begins April 1 and runs through the end of November.)

plantación

All the things you didn’t get around to planting in the fall (Life got in the way, right?) can be planted now, and sooner than later. Just be cognizant of the fact that they will probably have greater water needs through the summer than anything planted in the fall. Fall planted material has all winter to establish a root system strong enough to carry it through less than severe droughts. (I know. There are exceptions, but there are always exceptions. Take the aforementioned revelers and leprechauns, for example.)

Other things to be planted this month include perennials, for example coreopsis (C. bipinnata, C. lanceolata), foxglove (digital purpurea), equinácea morada (equinácea purpúrea), balloon flower (Platycodon grandiflorus), etc., and roses (Rosa sps.) While you have the trowel in hand, might as well hit the vegetable garden. The same things that could be planted in late February can still be planted now. We’re talking root veggies (beets, carrots, potatoes, turnips, etc.) and salad greens (leaf lettuces, cabbages, kale, etc.). There is still time to start annuals and warm season vegetables inside for transplanting in April or May.

Poda

(Left to right) When new buds begin to swell in the early spring on roses, it’s time to prune certain types. As a general rule, prune canes on rose bushes toward an outward facing bud and to a 5-leaflet leaf. (Image credit: Illinois Extension)

Be advised, finish any fruit tree pruning ASAP. Prune some types of roses mid to late March.1 (As an aside, now that we have been bumped up a USDA zone to 8, that timeline may need revising to an earlier date. I’ll research that for next year, so stay tuned.) Prune roses to a 5-leaflet leaf if those are visible. Otherwise prune the cane to an outward facing bud. Prune spring-flowering shrubs soon after the blooms fade.2 Dead head (pick off spent blossoms) on pansies (Viola X wittrockiana) to prolong bloom time.

fumigación

Break out the sprayers! However, before using said sprayers check the plants for pests. With few exceptions (There they are again and we’ll get to them yet again in a minute), prophylactic pesticide application is unwarranted. Always know what it is you are trying to control so that you can use the appropriate product. ALWAYS read the label and ALWAYS follow the instructions thereon. Applying a horticultural dormant oil to fruit trees, particularly those that have recently been pruned, will help control several insect problems. (I told you we’d see exceptions again.)

More Things to do when the Weather is Highly Unpredictable

Get all the soon-to-be-needed gardening equipment ready for use. If it is supposed to be sharp, sharpen it. If it needs calibrating (sprayers and spreaders), calibrate it. If it has moving parts, lubricate them. If it has a four stroke motor, change the oil and filter.

Plant a tree for Arbor Day. Here in North Carolina that is March 22nd this year. It is always the first Friday after the 15th. There will be several city, county, and state-sponsored events that will be posted on the various websites after March 1.


In all things gardening, have fun. If it isn’t fun, hire it out or plant something that doesn’t require the burdensome task you deplore. Gardening should be fun, relaxing, therapeutic even.

It is March. Let the fun begin!

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notas

1–Make sure you take note of the type of rose you are pruning. Certain types of roses that bloom only once in the spring such as “old-fashioned” roses and climbing varieties (like ‘Yellow Lady Banks’) should only be pruned immediately después flowering as they flower on last season’s woody growth. Prune before spring flowering and you will prune away all the flowers for the season. Some roses take a few seasons before they need a good pruning, and some varieties tolerate more severe pruning than others. If unsure what type of roses you have, research before you prune! See the factsheet on roses below for guidance.

2–If you need additional information on appropriate pruning times, NC Cooperative Extension’s pruning calendar offers some helpful tips. https://polk.ces.ncsu.edu/pruningcalendar/.

Recursos e información adicional

Clemson Cooperative Extension’s Home and Garden Information Center factsheet on pansies, violas, and panolas is a helpful guide for planting and care of these cold-hardy annuals.

https://hgic.clemson.edu/pansies-violas-and-panolas-oh-my/

Want to know more about pruning and proper care for roses? See University of Maryland’s factsheet on how to prune different types of roses.

https://extension.umd.edu/resource/guide-pruning-roses

Take a deeper dive into the art and science of pruning woody plants on University of Georgia and Clemson Cooperative Extension’ s Home and Information Garden Center’s extension websites.

https://extension.uga.edu/publications/detail.html?number=B949&title=basic-principles-of-pruning-woody-plants

Arbustos de poda

To understand soil and plant nutrients and the role of fertilization when needed, the online NC State Extension Gardener Handbook dedicates and entire chapter to the subject.

https://content.ces.ncsu.edu/extension-gardener-handbook/1-soils-and-plant-nutrients

For more information on soil testing and analysis, including a step-by-step guide on how to collect samples, see NC Cooperative Extension’s post.

https://durham.ces.ncsu.edu/2020/05/nows-the-perfect-time-to-test-your-soil

Learn how to disinfect and sharpen your garden tools properly, NC Cooperative Extension offers a great website with links to articles and videos.

https://forsyth.ces.ncsu.edu/2022/12/winter-is-a-great-time-for-garden-tool-care

The timing of hydrangea pruning can be tricky, as it depends on what type of hydrangea(s) you have in your landscape. Visit one of our previous blog posts for more information on when to prune.

https://wp.me/p2nIr1-3oH

Enlace breve del artículo https://wp.me/p2nIr1-4eJ