Plant Parenting
Which of the following is not a reason for rinsing/soaking LECA before use? [select all that apply]
Allow them to expand to their full size Coat them with mineral nutrients
A common feature of Medieval style gardens are...
Botanical gardens
Which of the following are helpful methods for sufficiently saturating the plant root zone with water? [select all that apply]
Bottom-watering Using the water, wait, water method Using chopsticks to create pores in the soil/media
A lot of houseplants can be quickly started from seed (within a week or two).
False
Air plants can grow well with just a regular misting from a spray bottle.
False
All of the tools shown in this video are essential to have for working with plants
False
Bell peppers are 'male' or 'female' depending on how many lobes they have.
False
Crushed eggshells are not generally effective as a pest control application.
False
From my experience, reused cardboard egg cartons are great for seed starting.
False
Grafting is a relatively modern technique for developing new plant varieties.
False
Houseplants purify the air in your home.
False
If you have multiple seeds that germinated in the same plug, you should leave both of them growing so the strongest one can naturally out-compete the weaker one.
False
If you have seedlings growing right next to a south-facing window, you don't need supplemental lighting.
False
Misting with a spray bottle is a great way to increase the moisture/humidity around your plants so they don't dry out (especially during drier months of the year).
False
Plants with fleshy trunks, like the Madagascar palm, need constant moisture because their roots are highly susceptible to drying out.
False
Propagation substrate for starting seeds or rooting cuttings should have high levels of nutrients.
False
Some houseplants can survive in zero light
False
Standard CFL bulbs provide supplemental lighting at levels comparable to most grow bulbs.
False
Sweet potato slips (e.g. when rooted in water) will only form vines and foliage but will not develop new tuberous roots.
False
The GE Advanced Red Light Spectrum heavy duty bulb produced more light than the GE Balanced Spectrum heavy duty bulb
False
The Miracle LED grow bulb provided roughly the amount of light it advertised on the package (in micromoles per m2 per second).
False
Using aluminum foil to help reflect the light back to the plants is a helpful way to supplement low natural-light environments.
False
Using natural products like mayonnaise to clean plant leaves is a good way to keep a plant healthy.
False
When transplanting, it's important to be very careful so you don't break any existing roots.
False
When watering succulents, it's best to only give them a small volume of water.
False
Yellowing leaves are usually a symptom of nutrient deficiency.
False
You can use vinegar and baking soda to determine the pH of your soil.
False
You should put Epsom salts in the hole when you pant vegetables outside.
False
Which of the following is a properly formatted botanical name?
Ficus lyrata
Which of the following rhizomes did I successfully harvest? [select all that apply]
Ginger
Which of the following rhizomes did I plant? [select all that apply]
Ginger Tumeric
_______ is the process of gradually moving seedlings from the protected indoor environment outdoors to be transplanted/grown outside.
Hardening off
_______ seeds are commonly considered plant varieties that were grown prior to WWII and are open-pollinated
Heirloom
Which of the following is true about parsley? [select all that apply]
It has compound leaves It's a biennial
This greenhouse chamber in the OSU Howlett Hall greenhouse uses _______ lights.
LED
_______ is a cool season crop that is affect by frost
Lettuce
Of the plants that i described in this video, which has/have fenestrations?
Monstera
Which of the following is *not* a common reason for modern taxonomic revisions?
Morphological characteristics
If you purchase lady beetles (aka ladybugs) online to use as a biocontrol, you may be sent the invasive ____________ (which you should not release).
Multi-colored Asian lady beetle
Which nutrient is most important for developing leaf area
Nitrogen
Where are buds formed on the rhizomes?
Node
Of the plants that I described in this video, which has/have aerial roots?
Orchids
Of the plants that I described in this video, which produce(s) plantlets?
Snake and ZZ plants
Which of the following is true about orthodox seeds? [select all that apply]
Some can be stored for several years They can tolerate being dried down to 5-10% moisture content They are common for horticulture and agronomic crops
Of the plants that I described in this video, which is/are rhizomatic?
Spider plant
Which of the following is true about succulents? [select all that apply]
Spines are modified leaves They're adapted to minimize water loss through transpiration Some stems can photosynthesize
Which of the following is true about orchids? [select all that apply]
They grow best in chunky, well-draining bark mix They have epiphytic roots that absorb some moisture from the air/environment
A fridge is usually a good environment for seed storage
True
Certain types of variegation (e.g. lighter colors around the margins of leaves) cannot be propagated from leaf cuttings.
True
Cinnamon may help prevent fungal diseases on plants.
True
For all bulbs, the amount of light decreases rapidly as you move away from the bulb or out of the direct beam of light.
True
Insects have a nervous system that operates essentially the same as the human nervous system.
True
It's best to refresh the water regularly for plants growing in LECA
True
LECA pebbles should be rinsed and soaked before using.
True
LED grow bulbs produce less heat compared to standard incandescent or CFL bulbs.
True
Lacewing larvae are predatory and feed on many pest insects.
True
Light levels, even taken just a few inches away from each other, can vary dramatically depending on sun vs. shade spots.
True
Many seeds and cuttings germinate/root better with supplemental bottom heat.
True
North-facing windows tend to get a good amount of natural light, especially in the winter.
True
Pothos cuttings naturally form adventitious roots.
True
Rotating plants so they each get a turn closer to a supplemental light fixture is helpful when there is not enough ambient light available.
True
Short, wide containers tend to retain more water than tall, narrow containers.
True
Some plants, like Haworthia, produce 'pups' that can be separated from the 'mother plant' to grow into new, separate plants.
True
Sometimes dead leaves (and generally sad looking plants) is an indication that the plant was overwatered and not able to drain sufficiently.
True
Sometimes when you purchase plants, the fabric plug liner will be constricting the crown of the plant and hindering development of new roots.
True
Sweet potato slips (shoots) can be propagated in water
True
Unglazed clay pots or other containers made from porous materials tend to dry out faster than pots made from plastic or other non-porous materials.
True
You can re-grow lettuce and green onions from their cut bases.
True
You can use clear plastic pop/water bottles as cloches/humidity domes.
True
Greenhouses/conservatories became popular during the __________ Era of garden design.
Victorian
Which of the following insects are in the order Hemiptera (true bugs)? [select all that apply]
Whiteflies Cicadas Aphids Scale insects Mealybugs
Which of the following are important considerations when applying a pesticide (even an organic pesticide like Azadirachtin)? [select all that apply]
You should wear appropriate protective equipment You may need to spray multiple times, a week or so apart, for full control
Many plants, including tomatoes and squash, can be transplanted deep so the soil comes up to the first set of leaves, because they'll produce ___________ along their stems.
adventitious roots
Herbaceous shoot cuttings must develop _________. [select all that apply]
adventitious roots callus tissue
Lettuce seeds require light to germinate and can be planted using the ____________ method, which means scattering them randomly over the ground/raised bed.
broadcast seeding
When growing plants in LECA you need to use a fertilizer that has NPK as well as ________.
calcium and magnesium
Succulent cuttings should be left to sit for a few days (maybe even a week) to develop a _______ to stimulate root and shoot formation.
callus
Herbaceous leaf cuttings must develop ________. [select all that apply]
callus tissue adventitious shoots adventitious roots
The ________ stage is the best/easiest to control for insects like scale and mealybugs.
crawler
Bacillus thuringiensis (Bt) primarily affects the insect ____________ system.
digestive
Seed starting potting mixes are generally _______ compared to regular potting mixes used for larger plants.
finer textured
Butterflying or teasing apart the roots when you are transplanting helps prevent the roots from ______.
growing in a spiral and strangling themselves
A lot of media is ___________, so when watering in seeds, it's best to mist them a little and then water gently, to avoid the media from being repelled out of the pot/tray (and carrying the seeds with it).
hydrophobic
The above-ground portions of snake and ZZ plants are the... [select all that apply]
leaves
The regions at the tips of the roots and branches, where active growth occurs, is called the __________.
meristems
The outward appearance of a plant, which is influenced by its genotype and environment, is the _________.
phenotype
The characteristics of citrus seeds to develop into more than one seedling is called ______.
polyembryony
Neem oil primarily affects the insect _________ system.
respiratory
Which of the following is *not* a common identification characteristic?
root structure
Plants that flower when the nights are long, are referred to as _____.
short-day plants
Insects breathe through their _______.
spiracles
Water vapor is released through leaf _______ along with oxygen, during the process of photosynthesis.
stomata
Requirements for seed germination include: [select all that apply]
sufficient moisture and proper temperature fulfillment of any dormancy requirememnts viability
Light level outside in full sun was approximately ______ micromoles per m2 per second.
1,300-1,500
The percent relative humidity + temperature in degrees F should equal no more than ___ for optimal seed storage
100
For raised beds or containers, I recommend having at least ____ inches of depth.
12
The Good Earth light bar provides between ______ micromoles per m2 per second (about a foot below the fixture).
25-55
Most of Ohio is in hardiness zone ___.
6
Removing the shade cloth on the patio increased the light level by about _____ micromoles per m2 per second.
60
Light level on the patio with shade cloth was around ______ micromoles per m2 per second.
75