Knowledgebase

Search Johnson's Nursery plants or plant matters.

Knowledgebase

Search Johnson's Nursery plants or plant matters.

October 16, 2017
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Seasonal Needle Drop

Seasonal Needle Drop The cooler temperatures of autumn are approaching and while humans are putting on extra layers of clothes, evergreens are shedding their old needles. This annual occurrence is called “Seasonal Needle Drop” and is completely normal. Think of it like people shedding their hairs. So don’t panic when […]
October 14, 2017
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Landscape Container Recycling

Landscape Plastics Recycling Drop off your used or discarded landscape plastic containers at Johnson’s Nursery, anytime during business hours. Plastics from the nursery industry are coded 2, 5 or 6. Before You Arrive: Separate according to plastic type (#2, #5, #6) regardless of size, style or color. Remove all loose […]
October 11, 2017
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Native Junipers You Should Know

Native Junipers You Should Know Juniperus virginiana and Juniperus communis – we have a boatload of these plants and they are really nice! I remember growing Juniperus virginiana and Juniperus communis years ago and they didn’t look as good as they do today. The bottom needles would turn brown and […]
October 10, 2017

Urban Trees: Narrow Space Savers

Urban Trees: Narrow Space Savers | Small – UNDER 15’ TALL Urban Trees: Narrow Space Savers A common theme we see in landscapes today are small spaces in need of vertical accents and urban trees. Whether you have a limiting lot size or an existing bed with a hole you […]
October 9, 2017
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Perennial Mums vs. Annual Mums

Perennial Mums vs. Hardy Mums When the morning temperatures turn chilly and the air smells of dried leaves, I get the overwhelming urge to buy chrysanthemums. The summer annuals on the porch are running out of steam and being threatened by the first frosts anyway. Luckily, garden centers, like Johnson’s […]
October 6, 2017

Fall Planting

Fall Planting Fall Planting In the fall, I am asked the same question over and over: Is it too late to plant? The answer? Not at all. But it is a good idea to get perennials and evergreens in the ground by mid-October. You want to give perennials enough time […]
October 6, 2017
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Crabapples for Birds

Crabapples for Birds I’m sure there are some of you out there that are thinking, “Yeah crabapples are for the birds, and not for me. They have disease problems (scab) that knock the leaves off the trees by August and the big, stinking fruit that drops all over the sidewalk […]
October 4, 2017
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Allelopathy

Allelopathy Competition for light, water, nutrients and space can drive plants to extreme measures. Since they don’t really have the option to act as animals do, like eating one another or running away, they must resort to more subtle techniques. Some plants grow fast, relying on speed to get ahead […]
October 2, 2017

Naughty Natives pt 3: Perennials

Naughty Natives – Part 3: Perennials Naughty Natives – Part 3: Perennials If you remember from Part 1: Trees and Part 2: Shrubs, we’re highlighting Wisconsin native plants that have a bad reputation as “weed plants” or that they are aggressive. Sometimes the aggressive nature, or undesirable traits, can be […]
October 2, 2017
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Native Pollinators

Native Pollinators Did you know the phrase “the bee’s knees” originally described something tiny and insignificant?  Since then it has evolved to mean something outstanding. And in August, I find nothing more outstanding than the sight of native pollinators in the landscape. One of the basics of plant life is […]
September 25, 2017
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Fungus Among Us

Fungus Among Us There is more going on with autumn leaves besides the color changes of yellow, orange, and red – fungus. September is when fungal spotting has reached its peak, causing many of your favorite plants to defoliate or go dormant early. See, in spring, fungal spores are everywhere, […]
August 12, 2017
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Battling Buckthorn

Battling Buckthorn Battling Buckthorn Wisconsin gardening comes with many obstacles: rabbits, deer, cold winters, and invasive non-native plant species. In the war against invasive plants, one of the worst enemies is Buckthorn, specifically Rhamnus cathartica (Common Buckthorn) and Rhamnus frangula (Glossy Buckthorn). Many times I’ll be at a customer’s site […]
July 17, 2017
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Plant Sex

Plant Sex Wisconsin summers are like a tumultuous love affair. They can fluctuate from hot and steamy to cold and rainy in the course of one night. Did you know that summer love affairs are happening all around us in broad daylight? Plants everywhere are fornicating, right in front of […]
July 13, 2017
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USDA Hardiness Zones

USDA Hardiness Zones USDA Hardiness Zones are the first step in determining which plants will reliably perform in a given space. The map breaks the US into numbered zones (1-13) based on the mean annual minimum extreme temperatures over the last 30 years, which are divided in increments of 10° […]
July 13, 2017
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Crazy Common Caterpillars

Crazy Common Caterpillars My son, Jack, loves books. He is almost one year old and loves to grab them, throw them, chew on them. He also adores books being read aloud to him. The other night I was reading him “The Very Hungry Caterpillar” by Eric Carle and it occurred […]
July 2, 2017
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Rabbit Resistant Perennials and Shrubs

Rabbit Resistant Perennials and Shrubs Rabbit Resistant Perennials and Shrubs Recently, my husband and I were babysitting my cousin’s kids. Since we don’t have children of our own, the selection of kid-friendly movies in our house is pretty limited. But my husband does have a complete set of Looney Tunes […]
June 17, 2017
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Naughty Natives pt 2: Shrubs

Naughty Natives – Part 2: Shrubs Naughty Natives – Part 2: Shrubs If you missed Part 1 of the “Naughty Natives” series, we highlighted trees. And here in Part 2, we’re discussing shrubs. This “Naught Native” series aims to highlight the Wisconsin native plants that have a bad reputation as […]
June 14, 2017
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Soils & Stones Beneath Your Feet

Soils & Stones Beneath Your Feet When you’re talking plants – you can’t ignore the soils and roots. When you’re talking roots – you can’t ignore the soil. When you’re talking soils – you can’t ignore the bedrock. Southeast Wisconsin’s “dirty” history (get it? DIRT?!?) begins many millions of years […]
June 11, 2017
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Choosing Natives

Choosing Natives You may ask yourself, what is a native plant? Well, simply said (or not so simply) a native plant is one that has occurred naturally, without human help, in a particular place since before European settlements. These plants have existed and evolved over thousands of years in a […]
May 25, 2017
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Phenology

Phenology The calendar says that spring is officially here, but it doesn’t really look like it yet. Today’s tip touches on a branch of science called phenology, meaning when climatic conditions correlate with plant and animal behaviors. Some say spring has arrived when you spy a robin. I say it […]
May 19, 2017
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History of Johnson’s Nursery

Johnson’s Nursery History Johnson’s Nursery, Inc™ (“Johnson’s Nursery”, “Johnson’s”, “JNI”) history begins its roots in the 1950’s with Clark Johnson. The original site was just south of the current location on Marcy Road in Menomonee Falls. In less than 10 years it outgrew its hobby intention and Clark opened the […]
May 16, 2017
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2017 Spring Plant Draft Picks

2017 Spring Plant Draft Picks We’re excite to announce the 2017 spring plant draft picks. Tulip blooms dotting the landscape aren’t the only sign that spring has arrived. Football fans eagerly watch to see who their favorite teams will acquire to create a winning line up in fall. These players […]
May 7, 2017
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Summer Bird Gardening

Summer Bird Gardening Your favorite bird or flock of birds are returning from their annual migrations and Mother Nature is providing a welcome home feast for them. Learn how to invite them to the yard and create a “birdscape”! You can still have feeders with seeds, nuts, and fruit to […]
May 2, 2017
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Nativars In Landscaping

What is a nativar? In the last few months I have had numerous people ask me what I thought about nativars and their appropriateness for native landscaping. Here are my thoughts. Allan Armitage, a horticulture professor at the University of Georgia, likely created the term nativar to mean a cultivar […]
April 18, 2017

Cultivar – What Is It?

Cultivar What is a cultivar? What are their advantages? My husband and I are expecting a little seedling in the fall. Thank goodness there is only one in here, but say I were having identical twins. They would be genetically identical, just like a plant “cultivar”. When the seeds of […]