 |
| Happy blueberry bush in our garden. |
What’s
that you say? This is supposed to be a gardening blog and you haven’t
seen any actual gardening for a while? I’m glad you mentioned it,
because it’s not that we haven’t been doing any. Mark has been itching
to talk about the extensive array of berries we’ve planted this year,
especially the blueberries. He’s also been taking advantage of his new
headlamp to stay out in the garden until 9pm. (Hilarious photos to
come.)
Blueberries
are about as quintessentially “Jersey” as the Turnpike and the
Sopranos. When it comes to growing them, the southern part of the state
is the perfect environment with its distinctively acidic soil thanks to
all those pine needles. While most fruit plants enjoy soil that is
neutral to slightly acidic, blueberry bushes prefer to plant their feet
in well-drained sandy loam, rich in organic material, with a pH range of
about 4-5. This habitat abounds in the evergreen forests of Atlantic,
Burlington, and Ocean counties, but not so much in western Morris
county. A certain amount of backbreaking toil is required--music to my
ears!
At
first glance, it’s tempting to lump blueberries in with members of the
bramble family (raspberries, blackberries, etc.), mostly because of the
similar ways we use the berries. I mean, how hard can they be to grow?
Wild raspberries grow like weeds around here, and even the cultivated
varieties thrive in less-than-ideal conditions. But the highbush
blueberry plant, a member of the heath family, differs in many ways from
your garden-variety bramble. In addition to the acidic soil
requirements, blueberries grow as individual bushes and take longer to
establish than raspberries. That said, once established, blueberry
plants can produce for decades, and wild version are every bit as
successful as their wineberry counterparts given the right conditions.
And that’s the key with blueberries: getting the conditions right.
My
first blueberry experiment began 2 years ago with about 8 plants and a
new garden space. I read up on planting techniques and made a plan. The
biggest challenge was to get the soil pH down from neutral to below 5 if
possible. A lot of sources recommend using peat moss and sulfur, so I
merrily dug 8 holes in hard-pack, rocky clay and filled them with with
some sphagnum moss, sulfur granules, and some native “soil” for good
measure. I planted each seedling, watered them once or twice, then
dutifully ignored them for the next 24 months; three or four survived
but never showed much growth, and the others called it quits altogether.
They turned into casualties of an over-ambitious start to an
overwhelming new garden. I’m sure it won’t be the last horticultural
atrocity I commit.
Flash-forward
to Plan B. My latest scheme is influenced an orchardist friend who has
actual experience growing blueberries just a few miles from my house.
The first step I took was to spread some sulfur, peat moss, and pine
needles over the planting area last fall. The idea here is to try to
slowly--not instantly--lower the pH of the entire area. Then, instead of
digging individual holes for each plant, I excavated a 35’ long trench
to a depth of about 12” and filled it with peat moss, sand, some native
soil, and a little compost. Importantly, NO sulfur went into the hole.
Sulfur is apparently a very slow-acting agent that can take years to
activate, and it does not belong in intimate contact with plant roots.
Next, I planted the blueberries and dumped lots of compost on top of the
filled-in trench and around each plant. I mulched the entire planting
area with cardboard [
Kate: This lends our garden a delightful hobo je ne sais quoi."]
and then dumped straw on top for weed control. The finishing touch is a
mound around each blueberry plant made of pine needles and forest
litter I dug up from our yard. I’ve even managed to water each plant
deeply twice during this hellacious drought we’ve had.
For
“fun,” I dug up the surviving stragglers of Blueberries v1.0 and
planted them at the end of the new row. I could be imagining things, but
I feel like these three old veterans have already perked up noticeably
this year at bud-break. Perhaps they’ve been biding their time, waiting
to explode with fecundity when conditions turned favorable. Or perhaps
I’m delusional and simply enjoy using disgusting adjectives. Only time
will tell.