Mike returns to Chantilly!
Mike will appear on Saturday, Feb. 22 and Sunday, Feb. 23 at the long-running Capital Remodel and Garden Show at the Dulles Expo Center in Chantilly. Exact times and details soon, but expect to hear about tomatoes, organic lawn care, compost鈥攁nd, of course鈥攁nswers to your toughest garden questions! (Or evasion of said questions, which is more fun…)
See the Philly Flower Show like a pro 鈥攁t a great price!
Long-time listeners know that I am ga-ga over the Philadelphia Flower Show 鈥� the oldest and largest (and best!) indoor flower show in the world. This year, the show will take us on a Riviera Holiday from Feb. 28 (members鈥� preview) through March 8.
If you鈥檙e ready to commit now, you on the show’s website, the only place to get these deals.
All Pennsylvania Horticultural Society memberships are discounted online and include flower show tickets plus bonuses.
The most amazing deal is a 鈥淔riends and Family鈥� membership for the discounted price of $135.
You become a member of PHS for a year and receive four adult tickets and two children鈥檚 tickets, which would cost you over $200 at the door.
Plus, you get discounts at the show, reciprocal membership at 300 botanic gardens, access to the Member鈥檚 Lounge at the show (a place to sit down!), a subscription to the PHS magazine, GROW (produced by two of my former colleagues from ORGANIC GARDENING magazine), and more.
But you must commit by Feb 3.
I鈥檓 committable Mike McGrath, urging you to check out all your Philly Flower Show options.
The roots of a willow oak
Reed in Vienna, Virginia, writes: 鈥淩oots from my large willow oak tree are starting to break up my asphalt driveway.聽 What should I do or not do to correct this problem?鈥�
We鈥檒l begin to answer that question below, Reed. For now, let us praise this tree!
A true oak tree in the red oak family, the willow oak proves its oaken identity by producing many acorns every year.
The “willow” part comes from its unique leaves, which closely resemble those of willows, much more so than other oak trees.
Like willows, it is also a water lover. It鈥檚 found naturally near river bottoms and other sources of water. It grows in sun or shade, making it an exceptional landscape tree.
But it grows so tall so quickly that it鈥檚 often taken down, which is truly unfortunate, as it has become endangered in Pennsylvania and New Jersey.
Getting to the root of the problem
Again, Reed asked: 鈥淩oots from my large willow oak tree are starting to break up my asphalt driveway.聽 What should I do or not do to correct this problem?鈥�
Tough call, Reed. Willow oaks are exceptional trees, but they grow really large really fast and their roots are known to break up driveways and sidewalks.
Can the driveway possibly be re-configured to accommodate the roots? (Those roots are a sign of a happy, healthy tree.)
If not, contact an arborist, who would use a device called an “air spade” to uncover the underground roots and then sever the ones encroaching on the driveway, seal the cuts with white latex paint and install a rhizome barrier to try and divert new roots.
Wait until the tree has time to heal and then have the driveway repaired.
Tree root treatise
Let鈥檚 discuss aboveground tree roots in general.
If you鈥檙e planting a new tree near a structure, driveway or pavement, choose one with roots that are well behaved. Your local state (or D.C.) extension service will have a list.
If you have an existing tree flexing its underground muscles, try and accommodate it if possible, as aboveground roots are the sign of a healthy tree.
Otherwise, contact an arborist and have them use an “air spade” to uncover the roots and then sever the ones that are encroaching, seal the cuts with white latex paint and install the rhizome barrier to try and divert new roots.
And DO call a pro! This is NOT a do-it-yourself project!
If the roots are in a lawn, add just enough soil or compost to cover the roots and make mowing easier. This won鈥檛 hurt the tree, but any mulch or soil touching the trunk will cause an early demise.
NO VOLCANO MULCHING! If your landscaper insists on doing it, hoe the mulch away and find another landscaper.
Seed catalog of the day
The new catalog from Breck鈥檚 鈥� in business since 1818 鈥� has a great offer of 50 to 75% off virtually all perennials without coupons or codes.
How about an oriental poppy named 鈥楬eartbeat鈥� that’s weather-resistant with an extended bloom time?
A six-plant mixture of colorful Siberian 鈥減eacock butterfly鈥� Iris?
Or “Strawberry and Cream” 鈥� a uniquely colored coneflower that pollinators are said to love?
I personally love the look of 鈥淧ink Hawaiian Coral鈥� peony, an APS gold medal winner that, unlike my peonies, requires no staking!
Or old-fashioned bleeding hearts 鈥� one of the oldest plants still in cultivation and a perennial garden favorite.
Or consider king-sized hellebores 鈥� perhaps the most deer-resistant flowering plant of all.
Request a catalog or see it all .
Mike McGrath was Editor-in-Chief of ORGANIC GARDENING magazine from 1990 through 1997. He has been the host of the nationally syndicated Public Radio show “You Bet Your Garden” since 1998 and Garden Editor for 蜜桃视频app since 1999. Send him your garden or pest control questions at MikeMcG@PTD.net.
