Category Archives: Shrubs

Little Lime Hydrangea

Little Lime Hydrangea™ is awesome!   We have just taken these out of our production area as they are now ready for sales and they are “flying off the shelves” so to speak!  New this year, they are from the Proven Winners line of plants and it is definitely a winner.

The dwarf version of Limelight Hydrangea, also in the Proven Winner lineup, it is one third the size which enables it to fit more easily into urban landscapes.  Hardy to Zone 3 – you’ll be seeing many more of them in Minnesota in the years to come.  The height and width of this plant is only 3′-4′ which will make it very versatile.  The standability of these young shrubs is just amazing. 

We just had a customer in this morning – coming all the way from the northern suburbs of the Twin Cities metro area because we were the only ones that had these plants.  She had called all of the major garden centers in the metro area and came up empty on all counts.  This is one of the areas that we are striving for is to have the plants that people are looking for.  We stock the standard plants that are needed, but we try to reach out and get the new varieties and try some that have been around for a while, but not found commonly on the marketplace.

Hydrangea Shrubs

Today I went out to do a “little” pruning in the hydrangea shrub section.  With a mission in mind!

Each year, I take a few cuttings of flowers from the hydrangeas for drying and then I keep them in vases for displays inside the house.  The ones that I currently have at home have been dried for two years now.  They are getting a little brittle so I decided it was time for another round of “fresh” hydrangeas for the living room!

My bouquet here features five different varieties – Limelight, Little Lime™ and Invincebelle Spirit®  – each of which is a Proven Winner variety and then Endless Summer and Twist ‘n Shout, both of which are part of the Endless Summer series of Hydrangeas.   I will take these home, place in a cool location that is dark, hang them upside down for 2 to 3 weeks and that is it!     The color will fade some but will still be quite colorful!

Hydrangea Care

I have had several calls the last couple of days with concerns like “my hydrangea is drooping” or the leaves aren’t looking very good and are turning brown”. These are concerns on newly planted hydrangeas.  These plants are heavy water users.  Here in the nursery, we are watering our container ones at least twice a day, and sometimes on the hot days – they’re getting watered three times a day.    Give your hydrangeas plenty of water – perhaps even twice a day.    They definitely show you that they are thirsty – they will wilt before your eyes!

Be careful not to leave a hose trickle water your plants.  You have no way of knowing if they are getting one gallon of water or twenty gallons.  Water in a way that you know how much water you are giving any plant.  With newly planted plants – all of the moisture that plant has is in the root ball.  Whether it was a small one gallon perennial, or a 15 gallon tree – once the moisture has been used up in that root ball, it is lacking moisture and is definitely under stress.  You need to be sure you get enough water on the plant to soak down into the entire root system.  A quarter inch of rain will only go down perhaps an inch or so into the soil surface.  If your plant has mulch on it, it is likely that none of the rain water from that 1/4 inch rain will even get to any of the roots, let alone all the way to the bottom of the root ball.

For more specifics on watering, please check out our instructions page and see our watering instructions.

A Great Time for Planting!

Early summer is an excellent time to plant trees, shrubs and perennials to make your landscape beautiful.  Approximately 130 days remain in the growing season and this provides a long period of time for establishment of new root systems that will power vigorous growth for years to come.

The keys to success are:   Good quality plant materials, proper site preparation that eliminates soil compaction in the areas where new roots will be growing, aggressive root pruning of any matted roots that have developed inside the container, avoiding planting too deep, and consistent watering that is just enough, but not too much.  (most plant death we see is from over-watering)

At Knecht’s Nurseries we have developed our own new one page planting guide that gives the simple, easy to follow steps that you can follow to achieve summer planting success.  Our experienced sales staff can help you select the right plants for your special site conditions.   It’s available under our instructions page – just click and print!

A Good Time to Prune

The time period from mid-March to mid-April is especially good for pruning trees.  With no leaves on the trees, it is much easier to evaluate the structure of the tree, choosing weakly attached branches for removal and leaving strongly attached branches to become the permanent framework.  The next month is also a good time for pruning Oaks and Elms, since there is a far lower chance of infection of the pruning cuts to cause Oak Wilt and Dutch Elm disease, than during the warm season from may through mid-October. 

Last April in my Blog Post, I discussed tree pruning — rather than re-writing another post – I am bringing it back this year.  It is so relevant and after a long winter, everyone is anxious to get outside and get something done and pruning your trees might be on your list.  The following is my blog post from April 15th of last year.

During late winter and early spring yards and gardens can often look their worst.  The grass is brown and sometimes damaged by winter stress, pets, de-icing products leaking off sidewalks, driveways and streets, snow plows, squirrels, and even foot traffic.  The tops of perennials that may have provided some winter interest are now tired and faded.  Interesting shrubs, vines and ornamental trees such as Winterberry, Bittersweet, High bush Cranberry, Mtn. Ash and certain flowering crabs that displayed beautiful red fruits all winter long now have finally faded.  Certain evergreen trees and shrubs show ugly browning foliage due to winter burn. Read More »

Plenty of Time for Fall Planting

PA075715Quite often when we have a stretch of poor weather in mid-fall people wonder if they can still plant trees and shrubs.  The answer is YES!  And we have a an additional bit of good news from the National Weather Service that the conditions in November are expected to be warmer than normal and with average preciptiation.  This means that dormant trees and shrubs can be planted under comfortable conditions and will be ready and waiting next spring to start establishing new roots as soon as the weather warms.

Stop in and talk with our knowledgeable staff about picking the right varieties for your particular situation and have a look at the amazing selection that we still have available for your fall planting!  As we speak, many of the varieties are showing their lovely fall colors and this will be changing daily.  It looks like there’ll be another few days of cool moist weather, but we are looking forward to a good run of weather toward the end of the month and into November.

The trees pictured here are from one of our growing ranges that Deb took last week.  It’s the Autumn Blaze Maple.  What fabulous fall color!   We have Autumn Blaze Maple in many sizes – to accomodate all prices points.  Stop in and take advantage of our incredible fall sale prices!  All of our plant materials are from 30% to 50% off!

Winterberry

PB143245Winterberry.   A shrub with glossy green leaves during the growing season.  Produces berries.  But wait — in late summer, these berries slowly start to turn color and by early fall – they’re red.  When the leaves come down, you will see masses of bright red berries that light up the fall landscape.  Best of all – they stay red into mid to late winter so when the snows come in December – (at holiday time, right?) – you will have this red bouncing off the white snow.   Gorgeous.

A member of the Holly family (Ilex) – there are several varieties that are Zone 4 hardy and will compliment any landscape.  We have a grouping of six at home, underneath one of our flowering crab trees.  The Red Sprite Winterberry (pictured here) will grow to be 4′-6′ in height with a width of approximately 3′.  The leaves do turn a yellow in the fall – but the berries are the show that this plant puts on.  The important fact that one must remember when planting Winterberry, is that you need at least two shrubs – a male and a female.  The male pollinator for the Red Sprite would be Jim Dandy.  This plant gets to be the same height, but just a little bit wider.  It produces no fruit so when planting – if you planted three – 2 Red Sprite, and 1 Jim Dandy – put the Jim Dandy in the middle or the back of the border depending on how you design your shrub bed.

These plants are very easy to care for.  They prefer moist, acidic soil – and can be planted in sun to part shade.   Pruning should happen in the spring before the growth starts so when the flowers and berries do set – you won’t be pruning them off.   Remember – you can’t plant things in the winter time – but with some careful planning you can enjoy your landscape 12 months a year!

Bittersweet

P1010005Now is the time to purchase and plant your Bittersweet plants.  The native (common) Bittersweet (Celastrus scandens)  is one of the plants that you need at least two of – a male and a female.  You can easily tell at this time of year which plant you have since the female plant sports the berries and the male plant will be just lush green foliage.   The common Bittersweet is not the invasive Japanese variety that is talked about. 

Bittersweet is a vine and is best grown along a fence, lattice work or larger trellis.  It grows quickly and will fill in a space that you want to have a little privacy or to hide what’s under a deck, etc.   The twigs of berries are sought after for fall decorating and arrangements.

A new variety of Bittersweet to hit the market is the Autumn Revolution Bittersweet™.    A brand new selection of the native American Bittersweet, but unlike the species, only one plant is needed to produce the fruit!  The majority of the flowers on the plant are “perfect” flowers – meaning that they are both male and female.  The fruit is large – about twice as large as the native plant’s fruit.  Keeping it’s bright colors – it is perfect for arrangements for the fall!  Another added bonus – very hardy – hardy to Zone 3!

We have a great selection of both plants – the native Bittersweet and the Autumn Revolution.  Stop in and start your own planting of Bittersweet!

Fall is for Planting!

Planting treeSuccessful planting projects to improve your landscaping can take place throughout the Fall!  Nights are growing longer, and days cooler which means reduced stress and moisture demands on new plantings.

If you are able to get your project area prepared, and the plants installed in September, many of them will be able to send out some new roots, beginning the establishment process, and helping them get a good start for next spring.  Good preparation of the soil in the planting area, aggressive root pruning prior to planting, and consistent watering are keys to good results.  Be sure to mulch all your fall plantings!

We also see October plantings doing well the following year.  Most plants are dormant or becoming dormant at this time.  These plants have stored large reserves of energy in their root systems and when fall planted, all this energy is available for new growth when soil temperatures warm up in the spring.  Your new landscape plants will already be in place, and ready to take advantage of every single day of the 2010 growing season to grow into a beautiful new landscape.

Another nice thing about Fall is the terrific bargains available.  In early Fall, the selection can still be  good, so make your plans, get your plants and get started planting!

Fall Sales Begin

Our fall sale has begun.  We have hundreds of trees, shrubs and perennials on sale.  The savings are from 30% to 50% on selected plants. If you have been contemplating a new landscape area, replacing a few plants in an existing shrub bed, or planting a new tree or two – now is the time to really get great bang for your buck! 

Not sure if you want to plant?  You can hire our crews to do the work for you!  Let the Fall Sale savings help you with the installation fees.

Check out our Specials page for extra savings for customers using our website!

Taking your Plants Home

P8315545We have had customers over the years who drive in with SUV’s, pickups, dump trucks, sedans, even an Austin Healey to pick up plants.   Yesterday, a customer came in with his street rod pulling a small trailer and picked up a tree!  One time a customer came in on his way home from fishing and we loaded up his boat (which was on the trailer) with shrubs and perennials! 

We do deliver plant material, soil mix, rock and mulch – but you can save on the delivery fee by bringing in your own vehicle/trailer to take your new plants home.  You will be surprised on how we can load your plants in smaller vehicles to get them home safely.  If you have questions on what would work – please give us a call and we’ll give you some advice!

Fall Seminar

fallingleavesWe will be holding our Fall Seminar on September 12th.  Our designers, Kristin Lucas and Amy Voight will present a seminar titled ‘Take the Guess Work out of Fall Clean-up and Winter Prep’. 

If you’ve wanted to know which perennials to cut down before winter or how to protect your new trees from winter damage this seminar is for you.  You’ll learn alot and we encourage you to bring along questions you’ve had – this will be a great time to ask them.  Coffee, cider and cookies will be served.

The cost of the seminar is $10 and for the first 24 people who register there’ll be a free garden mum.  Check out our  “Events” page for all of the details.

Hydrangea Time

P1010015One of the greatest August garden moments is when the hydrangeas start to bloom.  There are so many different varieties of hydrangea shrubs – and then there are the wonderful hydrangea trees!

The shrub form of hydrangeas range in sizes from 3′ tall all the way up to 10′ tall depending on the variety.  There are blue, pink and white hydrangeas.  Some blossom white, and then turn pink,  or start out with a lime-green and  turn pink in the later part of the season.  The Annabelle Hydrangea has round white flowers, whereas the Limelight Hydrangea (pictured here) has conical shaped flowers.  You are almost certain to be able to find a hydrangea that will fit your space.

The hydrangea trees are small, ornamental trees.  They are a great way to anchor a perennial bed, highlight the area by your front door, tuck one in a courtyard garden, or wherever your imagination can come up with! 

Hydrangeas prefer half day shade, but can handle full sun if kept watered properly.  Most varieties prefer a more acidic s0il.  By digging an extra wide hole and adding peat when planting, should do the trick.   An added bonus with the hydrangea flowers is that you can cut and dry them and use them in arrangements all year long!  Last fall I dried several hydrangea flowers and the ones that the cats didn’t knock over and take care of, are still looking great!

Crazy Days Sale – July 23rd

-1Northfield’s Annual Crazy Days will be held this Thursday – July 23rd starting at 7:00 am!!  We will be having over 50 varieties of trees, shrubs and perennials on sale at 50% off!!   There will be 30% off regular prices on many other plants as well!   And, Leif will almost certainly find some things that he’ll reduce even more!   Now is the time to add a tree or two to your landscape – make a new shrub and perennial bed – whatever!   The prices will be CRAZY here on Thursday.    Stop in early to make sure you get the best selection.   We can hold your purchases while you shop Northfield and pick them up at the end of the day!

See you all bright and early on Thursday!

Summertime Planting Projects

This is the time of the year when customers often ask us if it is too late to plant trees, shrubs and perennials.  The short answer is a definite – NO IT’S NOT TOO LATE TO PLANT!

Success with summer plantings is easy to achieve.  Trees, shrubs and perennials have the same needs whether it is spring, summer or fall, and following a few simple steps will ensure your success.

Proper planting technique, adequate but not excessive water, adequate but not excessive sunlight, and adequate but not excessive nutrients are all you need to provide your new landscape plants whether it is spring, summer, or fall.  It is just as easy to do in summer as at other times.

When you plant, root prune potted plants aggressively, cutting through matted roots on the outside of the root ball many times on the sides and bottom.  This will allow many new roots to quickly shoot out into the surrounding soil, providing much faster establishment and far better long term vigor.

Plant no deeper than the level the tree, shrub or perennial was growing in the pot or field, and make a circular dike of soil an inch or two high around each plant.  Place 1 to 2 inches of mulch over the dike to keep it from washing away during the first year when the plant is becoming established.

The dike will assure that the small amounts of water you provide everyday or every other day during the first 2-3 months will soak directly down into the root ball, providing adequate, but not excessive moisture.  By making this small dike around each plant, it takes only a few seconds a day to water each plant by hand.  As a result, most planting projects will require only a few minutes a day to keep adequately watered. Read More »