{% assign use_variant_images = false %}
{% capture vertical_scroll %}{% endcapture %} {%- if use_variant_images and variant.images[0] -%} {%- assign images = variant.images -%} {%- else -%} {%- assign images = product.images -%} {%- endif -%}
{% assign last_slide = 0 %} {% assign imgOffset = 0 %} {% if product.tags contains 'Graphic Overlay' %} {% assign imgOffset = 1 %} {% endif %} {%- for image in images offset: imgOffset -%} {% capture thumbRepsonsive %} {%- if image != blank -%} {%- if image.width > 180 -%}{{ image.src | img_url: '180x' }} 180w {{ 180 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 360 -%}{{ image.src | img_url: '360x' }} 360w {{ 360 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 540 -%}{{ image.src | img_url: '540x' }} 540w {{ 540 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 720 -%}{{ image.src | img_url: '720x' }} 720w {{ 720 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 900 -%}{{ image.src | img_url: '900x' }} 900w {{ 900 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 1080 -%}{{ image.src | img_url: '1080x' }} 1080w {{ 1080 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 1296 -%}{{ image.src | img_url: '1296x' }} 1296w {{ 1296 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 1512 -%}{{ image.src | img_url: '1512x' }} 1512w {{ 1512 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 1728 -%}{{ image.src | img_url: '1728x' }} 1728w {{ 1728 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 1944 -%}{{ image.src | img_url: '1944x' }} 1944w {{ 1944 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 2160 -%}{{ image.src | img_url: '2160x' }} 2160w {{ 2160 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 2376 -%}{{ image.src | img_url: '2376x' }} 2376w {{ 2376 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 2592 -%}{{ image.src | img_url: '2592x' }} 2592w {{ 2592 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 2808 -%}{{ image.src | img_url: '2808x' }} 2808w {{ 2808 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- if image.width > 3024 -%}{{ image.src | img_url: '3024x' }} 3024w {{ 3024 | divided_by: image.aspect_ratio | round }}h,{%- endif -%} {%- assign image_size = image.width | append: 'x' -%} {{ image.src | img_url: image_size }} {{ image.width }}w {{ image.height }}h {%- endif -%} {% endcapture %}
{% assign last_slide = forloop.index %} {% endfor %}
All media depicts mature plants.

'Blacknight' Hollyhock

PERENNIAL

Description

  • Six-foot-tall spikes of flowers tower in the garden!
  • Nearly black cup-shaped flowers have yellow centers.
  • Attracts butterflies and hummingbirds.
  • Zones 3-9, sun, 5-6' tall and 24" wide at maturity.
Zone 3-9
Light sun
very tall

{% capture DiscountGroup %}1{% endcapture %} {% capture DiscountTier %}1{% endcapture %} {% assign DiscountGroup = DiscountGroup | plus: 0 %} {% assign DiscountTier = DiscountTier | plus: 0 %} {% assign discount_amount = 0 %} {% for group in product.discounts_structure.groups %} {% if group.id == DiscountGroup %} {% for tier in group.tiers %} {% if tier.id == DiscountTier %} {% for discount in tier.discount %} {% if discount.min_quantity > variant.quantity %}{% break %}{% endif %} {% assign discount_amount = discount.discount_amount | times: 100 %} {% endfor %} {% break %} {% endif %} {% endfor %} {% break %} {% endif %} {% endfor %} {% if variant.price < variant.compare_at_price %} Sale {{- variant.price | minus: discount_amount | money | remove: ' ' -}}
{{- variant.compare_at_price | money | remove: ' ' -}} {% else %} {{- variant.price | money | remove: ' ' -}} {% endif %} Each

Buy More, Save More:
    {% for discountGroup in product.discounts_structure.groups %} {% if discountGroup.id == 1 %} {% for discountTier in discountGroup.tiers %} {% if discountTier.id == 1%} {% for discount in discountTier.discount %}
  • {% assign discount_amount = discount.discount_amount | times: 100 %} {% assign tier_ceiling = 10000 %} {% if discountTier.discount[forloop.index] != blank %}{% assign tier_ceiling = discountTier.discount[forloop.index].min_quantity | minus: 1 %}{% endif %}
    {{ variant.price | money | remove: ' ' }} {{ variant.price | minus: discount_amount | money | remove: ' ' }} / {{ discount.min_quantity }}{% if discountTier.discount[forloop.index] != blank %}-{{ discountTier.discount[forloop.index].min_quantity | minus: 1 }}{% else %}+{% endif %} qty.
  • {% endfor %} {% endif %} {% endfor %} {% endif %} {% endfor %}
Total
{% capture DiscountGroup %}1{% endcapture %} {% capture DiscountTier %}1{% endcapture %} {% assign DiscountGroup = DiscountGroup | plus: 0 %} {% assign DiscountTier = DiscountTier | plus: 0 %} {% assign discount_amount = 0 %} {% for group in product.discounts_structure.groups %} {% if group.id == DiscountGroup %} {% for tier in group.tiers %} {% if tier.id == DiscountTier %} {% for discount in tier.discount %} {% if discount.min_quantity > variant.quantity %}{% break %}{% endif %} {% assign discount_amount = variant.quantity | times: discount.discount_amount | times: 100 %} {% endfor %} {% break %} {% endif %} {% endfor %} {% break %} {% endif %} {% endfor %}
{{ variant.price | times: variant.quantity | minus: discount_amount | money | remove: ' ' }}
{% if discount_amount > 0 %} Saved {{ discount_amount | money | remove: ' ' }} {% endif %}
{% for option in product.options_with_values %} {% assign optionIndex = forloop.index0 %} {% assign position = forloop.index %}
{{option.name}}
{% assign sortedvalues = option.values %} {% if option.name contains 'Length' or option.name contains 'Width' or option.name contains 'Height' or option.name contains 'Depth' or option.name contains 'Thickness' or option.name contains 'Weight' %} {% assign sortedvalues = option.values | sort %} {% endif %} {% for value in sortedvalues %} {% assign inventory_quantity = 0 %} {% assign available = false %} {% assign optionVariant = false %} {% if product.options_with_values.size == 3 and optionIndex == 2%} {% for v in product.variants %} {% unless v.bogus %} {% if v.option1 == variant.option1 and v.option2 == variant.option2 and v.option3 == value %} {% assign optionVariant = v %} {% assign inventory_quantity = inventory_quantity | plus: v.inventory_quantity %} {% if v.available %}{% assign available = true %}{% endif %} {% endif %} {% endunless %} {% endfor %} {% elsif product.options_with_values.size == 2 and optionIndex == 1%} {% for v in product.variants %} {% unless v.bogus %} {% if v.option1 == variant.option1 and v.option2 == value %} {% assign optionVariant = v %} {% assign inventory_quantity = inventory_quantity | plus: v.inventory_quantity %} {% if v.available %}{% assign available = true %}{% endif %} {% endif %} {% endunless %} {% endfor %} {% else %} {% for v in product.variants %} {% unless v.bogus %} {% if v.option1 == value %} {% assign optionVariant = v %} {% assign inventory_quantity = inventory_quantity | plus: v.inventory_quantity %} {% if v.available %}{% assign available = true %}{% endif %} {% endif %} {% endunless %} {% endfor %} {% endif %} {% assign checked = "" %} {% if variant.options[optionIndex] == value%}{% assign checked = "checked" %}{% endif %} {% endfor %}
{% endfor %}
{% capture add_to_cart %}Neptune.cart.add({ id:{{ variant.id | json }}, quantity:{{ variant.quantity }}, properties:{ '_growingzone':['3a', '3b', '4a', '4b', '5a', '5b', '6a', '6b', '7a', '7b', '8a', '8b', '9a', '9b'],'shipping_exclusions':''} }, '.atcprod-{{ variant.id }}', { quantity: {{ variant.quantity }}, image: '//www.greatgardenplants.com/cdn/shop/products/Alcearosea_Blacknight_0003lowres.jpg?v=1672237637', title: 'Blacknight Hollyhock', option: 'One Quart' }); return false;{% endcapture %} {% assign discontinued = '' %} {% for tag in product.tags %} {% if tag contains 'discontinued' %} {% assign discontinued = 'true' %} {% endif %} {% endfor %} {% if variant.available %} {% else %} {% unless discontinued == 'true' %} Notify Me When Available {% endunless %} {% endif %}
{% if error %}
{{error.description}}
{% endif %}
white plant in hand icon

Hand-picked at our greenhouse

white shipped to door icon

Shipped to your door

Young plant icon

Arrives as young plant

background image

More Information

Description Try to find a plant that showcases the cottage-core aesthetic as well as 'Blacknight' hollyhock. We'll wait. 'Blacknight' features deep purple-black flowers with a yellow eye, positioned along a single stalk that reaches up to six feet tall. We think this earns it a place in every cottage garden. Its towering height makes it an excellent option for growing against walls and fencelines, or as an eclectic backdrop to low-growing perennials. 'Blacknight' is especially attractive to hummingbirds and butterflies. Though it may require some staking, this hollyhock will be a reliable and intriguing perennial in your garden.

Hollyhocks (or Alcea) have long been an old-fashioned cottage garden staple. This sun-loving classic boasts vibrant flowers, tall stems, and prominent lower foliage, which makes quite a statement in the landscape. Hollyhocks are easy to grow in rich soil and are fairly low maintenance, only requiring a heavy trim after flowering. Even near black walnut trees, hollyhocks manage to find a way to shine. Plant it as a specimen or in masses for a tall wall of color that will never cease to impress!
Details Botanical name: Alcea rosea ‘Blacknight’
Common name: Hollyhock
Zone: 3-9
Sun exposure: Sun (6+ hours sun)
Height x width: 5-6' X 24"
Flower color: Deep purple to black
Foliage color: Green
Season of Interest: Summer
Bloom time: Summer
Features: Rabbit resistant, juglone tolerant
Uses: Background, border
How To Grow Soil: Rich, moist, well-drained soil.
Light: Full sun
Water: Average, keep well-watered until established, once established they can tolerate some drought.
Spacing: 24 inches
Fertilizing: Hollyhocks benefit from light fertilizer in the spring.
Winterizing: prune back 6-8 inches above the ground before over-wintering. Additional mulching is optional. ‘Blacknight’ is a hardy perennial unlike other varieties of Hollyhock.
Maintenance & Pruning: Prune back after flowering to 6-8 inches above the ground. Staking may be required in high wind locations.

Life In The Garden

Pollinator-Friendly Perennials to Keep Your Garden Buzzing

Pollinators play a vital role in our ecosystems, gardens, and especially our food chain. Flowers produce pollen as a means of reproduction. While there are so many pollinator-friendly plants to choose from, here are seven of our favorites. You’ll love them, and the pollinators will too.

Customer Reviews

Based on 9 reviews
67%
(6)
11%
(1)
0%
(0)
22%
(2)
0%
(0)
C
C.B. (Missouri)
Love them

Arrived quickly...healthy..well packaged

J
J.T. (Virginia)
Dead

My plant looked fairly pitiful when opened. I thought that it would perk back up once planted and given some needed TLC. However, the plant never bounced back shriveled and died within just a few days.

We're sorry you're having trouble with your plants. Our team of horticulture experts would love to take a look. Please contact us at claims@greatgardenpants.com with your order number and photos of the plants. Our customer service team would love to hear more from you about your experience with this plant. All orders are covered by our 60-day guarantee. We look forward to helping! https://bit.ly/ggp-guarantee

J
J.C. (Indiana)
Blacknight holly hock

The holllyjocks arrived very dry and thirsty,afterwaterimg
One plant wilted terribly i don't think either one will survive they where jusst so dried out when they arrived!!

Hello! We’re sorry that you received plants that are not up to our standards. We try our best to provide excellent plants, but some factors, like shipping and handling, are outside our control. That’s why we have a 60-day guarantee on all of our orders. Please email your order number and pictures of your plants to claims@greatgardenplants.com to start the claims process. We look forward to helping! https://bit.ly/ggp-guarantee

K
K.D. (Pennsylvania)
A bee attraction

Bees LOVE this and it blooms proficiently. The color is vibrate. I get the best plants from this site.

L
L.C.A. (Colorado)
So, So

I ordered two of these pretty flowers and only one made it. It is growing the green bed nicely and I can't wait to see if it has any flower stalks next year. The second one died almost immediately, nothing came of it. I must say that I have noticed this year that the items being shipped via FedEx are arriving looking dead or are dead. I called the FedEx customer service to ask why there was a delay and I was told that it depends on the selection of the shipper, they no longer deliver as scheduled, they pull priority pkgs first and then the rest just sit around the warehouse until they have truck full of the non priority to make it worth the gas. I was livid.

Hello! We apologize that you received plants that are not up to our standards. While we try our best to provide exceptional service, some factors, like shipping and handling, are outside our control, and issues like this can sometimes happen. Please email pictures of the plants to claims@greatgardenplants.com, making sure to put your order number and name in the subject line so that we may provide the best assistance possible. Rest assured, we have a guarantee on all our plants. Our fall guarantee covers plants received after September 1 until May 2024! If you received your plants within that time frame, we would happily apply your warranty once we receive the pictures. Happy Gardening!
https://www.greatgardenplants.com/pages/our-guarantee